Home / 83,731.20-115,551.14-45,490.76

Finding the Fourth Proportional to 83,731.20, 115,551.14 and 45,490.76

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Solution

The fourth proportional to 83,731.20, 115,551.14 and 45,490.76 is: 62,778.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,731.20 : 115,551.14 = 45,490.76 : x
  2. Step 2: Convert to fraction form
    83,731.20/115,551.14 = 45,490.76/x
  3. Step 3: Cross multiply
    83,731.20x = 115,551.14 × 45,490.76
  4. Step 4: Simplify right side
    83,731.20x = 5,256,509,177.47
  5. Step 5: Solve for x
    x = 5,256,509,177.47/83,731.20
  6. Step 6: Final answer
    x = 62,778.38

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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.