Home / 96,691.28-145,036.97-30,136.78

Finding the Fourth Proportional to 96,691.28, 145,036.97 and 30,136.78

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Solution

The fourth proportional to 96,691.28, 145,036.97 and 30,136.78 is: 45,205.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,691.28 : 145,036.97 = 30,136.78 : x
  2. Step 2: Convert to fraction form
    96,691.28/145,036.97 = 30,136.78/x
  3. Step 3: Cross multiply
    96,691.28x = 145,036.97 × 30,136.78
  4. Step 4: Simplify right side
    96,691.28x = 4,370,946,743.48
  5. Step 5: Solve for x
    x = 4,370,946,743.48/96,691.28
  6. Step 6: Final answer
    x = 45,205.18

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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.