Home / 87,531.84-131,296.80-59,382.20

Finding the Fourth Proportional to 87,531.84, 131,296.80 and 59,382.20

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Solution

The fourth proportional to 87,531.84, 131,296.80 and 59,382.20 is: 89,072.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,531.84 : 131,296.80 = 59,382.20 : x
  2. Step 2: Convert to fraction form
    87,531.84/131,296.80 = 59,382.20/x
  3. Step 3: Cross multiply
    87,531.84x = 131,296.80 × 59,382.20
  4. Step 4: Simplify right side
    87,531.84x = 7,796,692,836.96
  5. Step 5: Solve for x
    x = 7,796,692,836.96/87,531.84
  6. Step 6: Final answer
    x = 89,072.65

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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.