Home / 66,472.43-91,765.78-51,331.10

Finding the Fourth Proportional to 66,472.43, 91,765.78 and 51,331.10

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Solution

The fourth proportional to 66,472.43, 91,765.78 and 51,331.10 is: 70,863.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472.43 : 91,765.78 = 51,331.10 : x
  2. Step 2: Convert to fraction form
    66,472.43/91,765.78 = 51,331.10/x
  3. Step 3: Cross multiply
    66,472.43x = 91,765.78 × 51,331.10
  4. Step 4: Simplify right side
    66,472.43x = 4,710,438,429.76
  5. Step 5: Solve for x
    x = 4,710,438,429.76/66,472.43
  6. Step 6: Final answer
    x = 70,863.04

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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.