Home / 54,543.80-81,815.40-15,100.64

Finding the Fourth Proportional to 54,543.80, 81,815.40 and 15,100.64

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Solution

The fourth proportional to 54,543.80, 81,815.40 and 15,100.64 is: 22,650.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,543.80 : 81,815.40 = 15,100.64 : x
  2. Step 2: Convert to fraction form
    54,543.80/81,815.40 = 15,100.64/x
  3. Step 3: Cross multiply
    54,543.80x = 81,815.40 × 15,100.64
  4. Step 4: Simplify right side
    54,543.80x = 1,235,464,901.86
  5. Step 5: Solve for x
    x = 1,235,464,901.86/54,543.80
  6. Step 6: Final answer
    x = 22,650.88

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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.