Home / 91,116.28-136,725.45-38,565.10

Finding the Fourth Proportional to 91,116.28, 136,725.45 and 38,565.10

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Solution

The fourth proportional to 91,116.28, 136,725.45 and 38,565.10 is: 57,869.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,116.28 : 136,725.45 = 38,565.10 : x
  2. Step 2: Convert to fraction form
    91,116.28/136,725.45 = 38,565.10/x
  3. Step 3: Cross multiply
    91,116.28x = 136,725.45 × 38,565.10
  4. Step 4: Simplify right side
    91,116.28x = 5,272,830,651.80
  5. Step 5: Solve for x
    x = 5,272,830,651.80/91,116.28
  6. Step 6: Final answer
    x = 57,869.25

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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.