Home / 78,349.92-117,532.24-25,759.52

Finding the Fourth Proportional to 78,349.92, 117,532.24 and 25,759.52

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Solution

The fourth proportional to 78,349.92, 117,532.24 and 25,759.52 is: 38,641.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,349.92 : 117,532.24 = 25,759.52 : x
  2. Step 2: Convert to fraction form
    78,349.92/117,532.24 = 25,759.52/x
  3. Step 3: Cross multiply
    78,349.92x = 117,532.24 × 25,759.52
  4. Step 4: Simplify right side
    78,349.92x = 3,027,574,086.92
  5. Step 5: Solve for x
    x = 3,027,574,086.92/78,349.92
  6. Step 6: Final answer
    x = 38,641.70

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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.