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Finding the Fourth Proportional to 69,585, 95,937.60 and 56,824.68

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Solution

The fourth proportional to 69,585, 95,937.60 and 56,824.68 is: 78,344.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,585 : 95,937.60 = 56,824.68 : x
  2. Step 2: Convert to fraction form
    69,585/95,937.60 = 56,824.68/x
  3. Step 3: Cross multiply
    69,585x = 95,937.60 × 56,824.68
  4. Step 4: Simplify right side
    69,585x = 5,451,623,419.97
  5. Step 5: Solve for x
    x = 5,451,623,419.97/69,585
  6. Step 6: Final answer
    x = 78,344.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.