Home / 49,451.76-74,275.20-42,488.64

Finding the Fourth Proportional to 49,451.76, 74,275.20 and 42,488.64

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Solution

The fourth proportional to 49,451.76, 74,275.20 and 42,488.64 is: 63,816.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,451.76 : 74,275.20 = 42,488.64 : x
  2. Step 2: Convert to fraction form
    49,451.76/74,275.20 = 42,488.64/x
  3. Step 3: Cross multiply
    49,451.76x = 74,275.20 × 42,488.64
  4. Step 4: Simplify right side
    49,451.76x = 3,155,852,233.73
  5. Step 5: Solve for x
    x = 3,155,852,233.73/49,451.76
  6. Step 6: Final answer
    x = 63,816.78

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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.