Home / 91,521.38-137,284.50-29,191.88

Finding the Fourth Proportional to 91,521.38, 137,284.50 and 29,191.88

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Solution

The fourth proportional to 91,521.38, 137,284.50 and 29,191.88 is: 43,788.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,521.38 : 137,284.50 = 29,191.88 : x
  2. Step 2: Convert to fraction form
    91,521.38/137,284.50 = 29,191.88/x
  3. Step 3: Cross multiply
    91,521.38x = 137,284.50 × 29,191.88
  4. Step 4: Simplify right side
    91,521.38x = 4,007,591,963.44
  5. Step 5: Solve for x
    x = 4,007,591,963.44/91,521.38
  6. Step 6: Final answer
    x = 43,788.59

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1.5x scale

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.