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Finding the Fourth Proportional to 72,070.66, 108,105.99 and 52,473.92

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Solution

The fourth proportional to 72,070.66, 108,105.99 and 52,473.92 is: 78,710.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,070.66 : 108,105.99 = 52,473.92 : x
  2. Step 2: Convert to fraction form
    72,070.66/108,105.99 = 52,473.92/x
  3. Step 3: Cross multiply
    72,070.66x = 108,105.99 × 52,473.92
  4. Step 4: Simplify right side
    72,070.66x = 5,672,744,808.41
  5. Step 5: Solve for x
    x = 5,672,744,808.41/72,070.66
  6. Step 6: Final answer
    x = 78,710.88

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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.