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Finding the Fourth Proportional to 78,592.68, 117,890.24 and 43,753.77

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Solution

The fourth proportional to 78,592.68, 117,890.24 and 43,753.77 is: 65,631.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,592.68 : 117,890.24 = 43,753.77 : x
  2. Step 2: Convert to fraction form
    78,592.68/117,890.24 = 43,753.77/x
  3. Step 3: Cross multiply
    78,592.68x = 117,890.24 × 43,753.77
  4. Step 4: Simplify right side
    78,592.68x = 5,158,142,227.44
  5. Step 5: Solve for x
    x = 5,158,142,227.44/78,592.68
  6. Step 6: Final answer
    x = 65,631.33

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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.