Home / 83,806.20-115,650.66-45,565.20

Finding the Fourth Proportional to 83,806.20, 115,650.66 and 45,565.20

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Solution

The fourth proportional to 83,806.20, 115,650.66 and 45,565.20 is: 62,878.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,806.20 : 115,650.66 = 45,565.20 : x
  2. Step 2: Convert to fraction form
    83,806.20/115,650.66 = 45,565.20/x
  3. Step 3: Cross multiply
    83,806.20x = 115,650.66 × 45,565.20
  4. Step 4: Simplify right side
    83,806.20x = 5,269,645,453.03
  5. Step 5: Solve for x
    x = 5,269,645,453.03/83,806.20
  6. Step 6: Final answer
    x = 62,878.95

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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.