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Finding the Fourth Proportional to 64,167.90, 96,251.85 and 19,790.70

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Solution

The fourth proportional to 64,167.90, 96,251.85 and 19,790.70 is: 29,686.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,167.90 : 96,251.85 = 19,790.70 : x
  2. Step 2: Convert to fraction form
    64,167.90/96,251.85 = 19,790.70/x
  3. Step 3: Cross multiply
    64,167.90x = 96,251.85 × 19,790.70
  4. Step 4: Simplify right side
    64,167.90x = 1,904,891,487.80
  5. Step 5: Solve for x
    x = 1,904,891,487.80/64,167.90
  6. Step 6: Final answer
    x = 29,686.05

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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.