Home / 83,398.29-115,085.20-47,591.62

Finding the Fourth Proportional to 83,398.29, 115,085.20 and 47,591.62

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Solution

The fourth proportional to 83,398.29, 115,085.20 and 47,591.62 is: 65,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,398.29 : 115,085.20 = 47,591.62 : x
  2. Step 2: Convert to fraction form
    83,398.29/115,085.20 = 47,591.62/x
  3. Step 3: Cross multiply
    83,398.29x = 115,085.20 × 47,591.62
  4. Step 4: Simplify right side
    83,398.29x = 5,477,091,106.02
  5. Step 5: Solve for x
    x = 5,477,091,106.02/83,398.29
  6. Step 6: Final answer
    x = 65,673.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.