Home / 49,732.20-74,870.55-45,377.64

Finding the Fourth Proportional to 49,732.20, 74,870.55 and 45,377.64

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Solution

The fourth proportional to 49,732.20, 74,870.55 and 45,377.64 is: 68,314.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,732.20 : 74,870.55 = 45,377.64 : x
  2. Step 2: Convert to fraction form
    49,732.20/74,870.55 = 45,377.64/x
  3. Step 3: Cross multiply
    49,732.20x = 74,870.55 × 45,377.64
  4. Step 4: Simplify right side
    49,732.20x = 3,397,448,864.50
  5. Step 5: Solve for x
    x = 3,397,448,864.50/49,732.20
  6. Step 6: Final answer
    x = 68,314.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.