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Finding the Fourth Proportional to 54,392.38, 75,061.15 and 30,519

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Solution

The fourth proportional to 54,392.38, 75,061.15 and 30,519 is: 42,116.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,392.38 : 75,061.15 = 30,519 : x
  2. Step 2: Convert to fraction form
    54,392.38/75,061.15 = 30,519/x
  3. Step 3: Cross multiply
    54,392.38x = 75,061.15 × 30,519
  4. Step 4: Simplify right side
    54,392.38x = 2,290,791,160.55
  5. Step 5: Solve for x
    x = 2,290,791,160.55/54,392.38
  6. Step 6: Final answer
    x = 42,116.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.