Home / 91,508.07-126,283.28-51,220.83

Finding the Fourth Proportional to 91,508.07, 126,283.28 and 51,220.83

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Solution

The fourth proportional to 91,508.07, 126,283.28 and 51,220.83 is: 70,685.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,508.07 : 126,283.28 = 51,220.83 : x
  2. Step 2: Convert to fraction form
    91,508.07/126,283.28 = 51,220.83/x
  3. Step 3: Cross multiply
    91,508.07x = 126,283.28 × 51,220.83
  4. Step 4: Simplify right side
    91,508.07x = 6,468,334,160.62
  5. Step 5: Solve for x
    x = 6,468,334,160.62/91,508.07
  6. Step 6: Final answer
    x = 70,685.94

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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.