Home / 83,439.18-115,147.53-45,711.18

Finding the Fourth Proportional to 83,439.18, 115,147.53 and 45,711.18

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Solution

The fourth proportional to 83,439.18, 115,147.53 and 45,711.18 is: 63,082.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,439.18 : 115,147.53 = 45,711.18 : x
  2. Step 2: Convert to fraction form
    83,439.18/115,147.53 = 45,711.18/x
  3. Step 3: Cross multiply
    83,439.18x = 115,147.53 × 45,711.18
  4. Step 4: Simplify right side
    83,439.18x = 5,263,529,470.39
  5. Step 5: Solve for x
    x = 5,263,529,470.39/83,439.18
  6. Step 6: Final answer
    x = 63,082.23

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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.