Home / 83,617.29-115,389.45-45,375.15

Finding the Fourth Proportional to 83,617.29, 115,389.45 and 45,375.15

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Solution

The fourth proportional to 83,617.29, 115,389.45 and 45,375.15 is: 62,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,617.29 : 115,389.45 = 45,375.15 : x
  2. Step 2: Convert to fraction form
    83,617.29/115,389.45 = 45,375.15/x
  3. Step 3: Cross multiply
    83,617.29x = 115,389.45 × 45,375.15
  4. Step 4: Simplify right side
    83,617.29x = 5,235,813,602.17
  5. Step 5: Solve for x
    x = 5,235,813,602.17/83,617.29
  6. Step 6: Final answer
    x = 62,616.40

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1.5x scale

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.