Home / 54,471.91-81,666.35-28,159.87

Finding the Fourth Proportional to 54,471.91, 81,666.35 and 28,159.87

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Solution

The fourth proportional to 54,471.91, 81,666.35 and 28,159.87 is: 42,218.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,471.91 : 81,666.35 = 28,159.87 : x
  2. Step 2: Convert to fraction form
    54,471.91/81,666.35 = 28,159.87/x
  3. Step 3: Cross multiply
    54,471.91x = 81,666.35 × 28,159.87
  4. Step 4: Simplify right side
    54,471.91x = 2,299,713,658.58
  5. Step 5: Solve for x
    x = 2,299,713,658.58/54,471.91
  6. Step 6: Final answer
    x = 42,218.34

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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.