Home / 48,728.71-67,245.11-28,581.74

Finding the Fourth Proportional to 48,728.71, 67,245.11 and 28,581.74

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Solution

The fourth proportional to 48,728.71, 67,245.11 and 28,581.74 is: 39,442.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,728.71 : 67,245.11 = 28,581.74 : x
  2. Step 2: Convert to fraction form
    48,728.71/67,245.11 = 28,581.74/x
  3. Step 3: Cross multiply
    48,728.71x = 67,245.11 × 28,581.74
  4. Step 4: Simplify right side
    48,728.71x = 1,921,982,250.29
  5. Step 5: Solve for x
    x = 1,921,982,250.29/48,728.71
  6. Step 6: Final answer
    x = 39,442.50

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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.