Home / 91,503.46-126,280.38-51,219.73

Finding the Fourth Proportional to 91,503.46, 126,280.38 and 51,219.73

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Solution

The fourth proportional to 91,503.46, 126,280.38 and 51,219.73 is: 70,686.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,503.46 : 126,280.38 = 51,219.73 : x
  2. Step 2: Convert to fraction form
    91,503.46/126,280.38 = 51,219.73/x
  3. Step 3: Cross multiply
    91,503.46x = 126,280.38 × 51,219.73
  4. Step 4: Simplify right side
    91,503.46x = 6,468,046,967.90
  5. Step 5: Solve for x
    x = 6,468,046,967.90/91,503.46
  6. Step 6: Final answer
    x = 70,686.36

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Half scale
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Double scale
Find fourth proportional to 91,504.46, 126,281.76 and 51,220.73
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.