Home / 54,680.16-81,991.08-28,319.52

Finding the Fourth Proportional to 54,680.16, 81,991.08 and 28,319.52

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Solution

The fourth proportional to 54,680.16, 81,991.08 and 28,319.52 is: 42,464.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,680.16 : 81,991.08 = 28,319.52 : x
  2. Step 2: Convert to fraction form
    54,680.16/81,991.08 = 28,319.52/x
  3. Step 3: Cross multiply
    54,680.16x = 81,991.08 × 28,319.52
  4. Step 4: Simplify right side
    54,680.16x = 2,321,948,029.88
  5. Step 5: Solve for x
    x = 2,321,948,029.88/54,680.16
  6. Step 6: Final answer
    x = 42,464.18

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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.