Home / 91,364.13-137,115.45-38,810.52

Finding the Fourth Proportional to 91,364.13, 137,115.45 and 38,810.52

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Solution

The fourth proportional to 91,364.13, 137,115.45 and 38,810.52 is: 58,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,364.13 : 137,115.45 = 38,810.52 : x
  2. Step 2: Convert to fraction form
    91,364.13/137,115.45 = 38,810.52/x
  3. Step 3: Cross multiply
    91,364.13x = 137,115.45 × 38,810.52
  4. Step 4: Simplify right side
    91,364.13x = 5,321,521,914.53
  5. Step 5: Solve for x
    x = 5,321,521,914.53/91,364.13
  6. Step 6: Final answer
    x = 58,245.20

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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.