Home / 91,984.86-137,948.13-39,380.22

Finding the Fourth Proportional to 91,984.86, 137,948.13 and 39,380.22

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Solution

The fourth proportional to 91,984.86, 137,948.13 and 39,380.22 is: 59,057.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,984.86 : 137,948.13 = 39,380.22 : x
  2. Step 2: Convert to fraction form
    91,984.86/137,948.13 = 39,380.22/x
  3. Step 3: Cross multiply
    91,984.86x = 137,948.13 × 39,380.22
  4. Step 4: Simplify right side
    91,984.86x = 5,432,427,707.99
  5. Step 5: Solve for x
    x = 5,432,427,707.99/91,984.86
  6. Step 6: Final answer
    x = 59,057.85

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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.