Home / 54,129.13-81,191.86-19,067.88

Finding the Fourth Proportional to 54,129.13, 81,191.86 and 19,067.88

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Solution

The fourth proportional to 54,129.13, 81,191.86 and 19,067.88 is: 28,601.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,129.13 : 81,191.86 = 19,067.88 : x
  2. Step 2: Convert to fraction form
    54,129.13/81,191.86 = 19,067.88/x
  3. Step 3: Cross multiply
    54,129.13x = 81,191.86 × 19,067.88
  4. Step 4: Simplify right side
    54,129.13x = 1,548,156,643.46
  5. Step 5: Solve for x
    x = 1,548,156,643.46/54,129.13
  6. Step 6: Final answer
    x = 28,601.17

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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.