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Finding the Fourth Proportional to 63,785.66, 95,678.39 and 21,670.11

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Solution

The fourth proportional to 63,785.66, 95,678.39 and 21,670.11 is: 32,505.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,785.66 : 95,678.39 = 21,670.11 : x
  2. Step 2: Convert to fraction form
    63,785.66/95,678.39 = 21,670.11/x
  3. Step 3: Cross multiply
    63,785.66x = 95,678.39 × 21,670.11
  4. Step 4: Simplify right side
    63,785.66x = 2,073,361,290.10
  5. Step 5: Solve for x
    x = 2,073,361,290.10/63,785.66
  6. Step 6: Final answer
    x = 32,505.13

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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.