Home / 54,785.52-81,781.96-48,142.52

Finding the Fourth Proportional to 54,785.52, 81,781.96 and 48,142.52

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Solution

The fourth proportional to 54,785.52, 81,781.96 and 48,142.52 is: 71,865.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,785.52 : 81,781.96 = 48,142.52 : x
  2. Step 2: Convert to fraction form
    54,785.52/81,781.96 = 48,142.52/x
  3. Step 3: Cross multiply
    54,785.52x = 81,781.96 × 48,142.52
  4. Step 4: Simplify right side
    54,785.52x = 3,937,189,644.94
  5. Step 5: Solve for x
    x = 3,937,189,644.94/54,785.52
  6. Step 6: Final answer
    x = 71,865.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.