Home / 80,941.97-121,309.05-38,758.85

Finding the Fourth Proportional to 80,941.97, 121,309.05 and 38,758.85

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Solution

The fourth proportional to 80,941.97, 121,309.05 and 38,758.85 is: 58,088.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,941.97 : 121,309.05 = 38,758.85 : x
  2. Step 2: Convert to fraction form
    80,941.97/121,309.05 = 38,758.85/x
  3. Step 3: Cross multiply
    80,941.97x = 121,309.05 × 38,758.85
  4. Step 4: Simplify right side
    80,941.97x = 4,701,799,272.59
  5. Step 5: Solve for x
    x = 4,701,799,272.59/80,941.97
  6. Step 6: Final answer
    x = 58,088.52

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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.