Home / 54,583.20-81,874.80-15,140.70

Finding the Fourth Proportional to 54,583.20, 81,874.80 and 15,140.70

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Solution

The fourth proportional to 54,583.20, 81,874.80 and 15,140.70 is: 22,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,583.20 : 81,874.80 = 15,140.70 : x
  2. Step 2: Convert to fraction form
    54,583.20/81,874.80 = 15,140.70/x
  3. Step 3: Cross multiply
    54,583.20x = 81,874.80 × 15,140.70
  4. Step 4: Simplify right side
    54,583.20x = 1,239,641,784.36
  5. Step 5: Solve for x
    x = 1,239,641,784.36/54,583.20
  6. Step 6: Final answer
    x = 22,711.05

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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.