Home / 87,672.74-131,304.08-43,156.36

Finding the Fourth Proportional to 87,672.74, 131,304.08 and 43,156.36

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Solution

The fourth proportional to 87,672.74, 131,304.08 and 43,156.36 is: 64,633.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,672.74 : 131,304.08 = 43,156.36 : x
  2. Step 2: Convert to fraction form
    87,672.74/131,304.08 = 43,156.36/x
  3. Step 3: Cross multiply
    87,672.74x = 131,304.08 × 43,156.36
  4. Step 4: Simplify right side
    87,672.74x = 5,666,606,145.95
  5. Step 5: Solve for x
    x = 5,666,606,145.95/87,672.74
  6. Step 6: Final answer
    x = 64,633.62

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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.