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Finding the Fourth Proportional to 66,472.57, 91,766.02 and 51,331.24

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Solution

The fourth proportional to 66,472.57, 91,766.02 and 51,331.24 is: 70,863.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472.57 : 91,766.02 = 51,331.24 : x
  2. Step 2: Convert to fraction form
    66,472.57/91,766.02 = 51,331.24/x
  3. Step 3: Cross multiply
    66,472.57x = 91,766.02 × 51,331.24
  4. Step 4: Simplify right side
    66,472.57x = 4,710,463,596.46
  5. Step 5: Solve for x
    x = 4,710,463,596.46/66,472.57
  6. Step 6: Final answer
    x = 70,863.27

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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.