Home / 91,905.18-126,829.65-51,618.94

Finding the Fourth Proportional to 91,905.18, 126,829.65 and 51,618.94

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Solution

The fourth proportional to 91,905.18, 126,829.65 and 51,618.94 is: 71,234.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,905.18 : 126,829.65 = 51,618.94 : x
  2. Step 2: Convert to fraction form
    91,905.18/126,829.65 = 51,618.94/x
  3. Step 3: Cross multiply
    91,905.18x = 126,829.65 × 51,618.94
  4. Step 4: Simplify right side
    91,905.18x = 6,546,812,093.57
  5. Step 5: Solve for x
    x = 6,546,812,093.57/91,905.18
  6. Step 6: Final answer
    x = 71,234.42

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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.