Home / 90,915.44-125,398.68-60,685.52

Finding the Fourth Proportional to 90,915.44, 125,398.68 and 60,685.52

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Solution

The fourth proportional to 90,915.44, 125,398.68 and 60,685.52 is: 83,702.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,915.44 : 125,398.68 = 60,685.52 : x
  2. Step 2: Convert to fraction form
    90,915.44/125,398.68 = 60,685.52/x
  3. Step 3: Cross multiply
    90,915.44x = 125,398.68 × 60,685.52
  4. Step 4: Simplify right side
    90,915.44x = 7,609,884,103.11
  5. Step 5: Solve for x
    x = 7,609,884,103.11/90,915.44
  6. Step 6: Final answer
    x = 83,702.88

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1.5x scale

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.