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Finding the Fourth Proportional to 66,314.10, 99,471.16 and 63,434.56

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Solution

The fourth proportional to 66,314.10, 99,471.16 and 63,434.56 is: 95,151.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,314.10 : 99,471.16 = 63,434.56 : x
  2. Step 2: Convert to fraction form
    66,314.10/99,471.16 = 63,434.56/x
  3. Step 3: Cross multiply
    66,314.10x = 99,471.16 × 63,434.56
  4. Step 4: Simplify right side
    66,314.10x = 6,309,909,267.29
  5. Step 5: Solve for x
    x = 6,309,909,267.29/66,314.10
  6. Step 6: Final answer
    x = 95,151.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.