Home / 54,290.64-81,560.70-38,534.79

Finding the Fourth Proportional to 54,290.64, 81,560.70 and 38,534.79

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Solution

The fourth proportional to 54,290.64, 81,560.70 and 38,534.79 is: 57,890.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,290.64 : 81,560.70 = 38,534.79 : x
  2. Step 2: Convert to fraction form
    54,290.64/81,560.70 = 38,534.79/x
  3. Step 3: Cross multiply
    54,290.64x = 81,560.70 × 38,534.79
  4. Step 4: Simplify right side
    54,290.64x = 3,142,924,446.75
  5. Step 5: Solve for x
    x = 3,142,924,446.75/54,290.64
  6. Step 6: Final answer
    x = 57,890.72

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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.