Home / 83,799.20-125,449.32-54,130.52

Finding the Fourth Proportional to 83,799.20, 125,449.32 and 54,130.52

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Solution

The fourth proportional to 83,799.20, 125,449.32 and 54,130.52 is: 81,034.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,799.20 : 125,449.32 = 54,130.52 : x
  2. Step 2: Convert to fraction form
    83,799.20/125,449.32 = 54,130.52/x
  3. Step 3: Cross multiply
    83,799.20x = 125,449.32 × 54,130.52
  4. Step 4: Simplify right side
    83,799.20x = 6,790,636,925.25
  5. Step 5: Solve for x
    x = 6,790,636,925.25/83,799.20
  6. Step 6: Final answer
    x = 81,034.63

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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.