Home / 54,278.64-81,542.70-38,522.79

Finding the Fourth Proportional to 54,278.64, 81,542.70 and 38,522.79

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Solution

The fourth proportional to 54,278.64, 81,542.70 and 38,522.79 is: 57,872.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,278.64 : 81,542.70 = 38,522.79 : x
  2. Step 2: Convert to fraction form
    54,278.64/81,542.70 = 38,522.79/x
  3. Step 3: Cross multiply
    54,278.64x = 81,542.70 × 38,522.79
  4. Step 4: Simplify right side
    54,278.64x = 3,141,252,308.13
  5. Step 5: Solve for x
    x = 3,141,252,308.13/54,278.64
  6. Step 6: Final answer
    x = 57,872.72

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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.