Home / 54,657.32-81,973.02-15,215.72

Finding the Fourth Proportional to 54,657.32, 81,973.02 and 15,215.72

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Solution

The fourth proportional to 54,657.32, 81,973.02 and 15,215.72 is: 22,819.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,657.32 : 81,973.02 = 15,215.72 : x
  2. Step 2: Convert to fraction form
    54,657.32/81,973.02 = 15,215.72/x
  3. Step 3: Cross multiply
    54,657.32x = 81,973.02 × 15,215.72
  4. Step 4: Simplify right side
    54,657.32x = 1,247,278,519.87
  5. Step 5: Solve for x
    x = 1,247,278,519.87/54,657.32
  6. Step 6: Final answer
    x = 22,819.97

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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.