Home / 91,561.86-137,231.88-38,860.68

Finding the Fourth Proportional to 91,561.86, 137,231.88 and 38,860.68

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Solution

The fourth proportional to 91,561.86, 137,231.88 and 38,860.68 is: 58,243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,561.86 : 137,231.88 = 38,860.68 : x
  2. Step 2: Convert to fraction form
    91,561.86/137,231.88 = 38,860.68/x
  3. Step 3: Cross multiply
    91,561.86x = 137,231.88 × 38,860.68
  4. Step 4: Simplify right side
    91,561.86x = 5,332,924,174.48
  5. Step 5: Solve for x
    x = 5,332,924,174.48/91,561.86
  6. Step 6: Final answer
    x = 58,243.95

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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.