Home / 49,318.60-74,057.10-45,680.20

Finding the Fourth Proportional to 49,318.60, 74,057.10 and 45,680.20

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Solution

The fourth proportional to 49,318.60, 74,057.10 and 45,680.20 is: 68,593.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,318.60 : 74,057.10 = 45,680.20 : x
  2. Step 2: Convert to fraction form
    49,318.60/74,057.10 = 45,680.20/x
  3. Step 3: Cross multiply
    49,318.60x = 74,057.10 × 45,680.20
  4. Step 4: Simplify right side
    49,318.60x = 3,382,943,139.42
  5. Step 5: Solve for x
    x = 3,382,943,139.42/49,318.60
  6. Step 6: Final answer
    x = 68,593.66

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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.