Home / 83,417.20-115,115.21-45,176.14

Finding the Fourth Proportional to 83,417.20, 115,115.21 and 45,176.14

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Solution

The fourth proportional to 83,417.20, 115,115.21 and 45,176.14 is: 62,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,417.20 : 115,115.21 = 45,176.14 : x
  2. Step 2: Convert to fraction form
    83,417.20/115,115.21 = 45,176.14/x
  3. Step 3: Cross multiply
    83,417.20x = 115,115.21 × 45,176.14
  4. Step 4: Simplify right side
    83,417.20x = 5,200,460,642.73
  5. Step 5: Solve for x
    x = 5,200,460,642.73/83,417.20
  6. Step 6: Final answer
    x = 62,342.78

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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.