Home / 91,890.43-137,748.15-29,517.19

Finding the Fourth Proportional to 91,890.43, 137,748.15 and 29,517.19

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Solution

The fourth proportional to 91,890.43, 137,748.15 and 29,517.19 is: 44,247.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,890.43 : 137,748.15 = 29,517.19 : x
  2. Step 2: Convert to fraction form
    91,890.43/137,748.15 = 29,517.19/x
  3. Step 3: Cross multiply
    91,890.43x = 137,748.15 × 29,517.19
  4. Step 4: Simplify right side
    91,890.43x = 4,065,937,971.33
  5. Step 5: Solve for x
    x = 4,065,937,971.33/91,890.43
  6. Step 6: Final answer
    x = 44,247.68

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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.