Home / 49,517.34-74,275.13-45,660.40

Finding the Fourth Proportional to 49,517.34, 74,275.13 and 45,660.40

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Solution

The fourth proportional to 49,517.34, 74,275.13 and 45,660.40 is: 68,489.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,517.34 : 74,275.13 = 45,660.40 : x
  2. Step 2: Convert to fraction form
    49,517.34/74,275.13 = 45,660.40/x
  3. Step 3: Cross multiply
    49,517.34x = 74,275.13 × 45,660.40
  4. Step 4: Simplify right side
    49,517.34x = 3,391,432,145.85
  5. Step 5: Solve for x
    x = 3,391,432,145.85/49,517.34
  6. Step 6: Final answer
    x = 68,489.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.