Home / 87,531.49-131,309.39-28,348.03

Finding the Fourth Proportional to 87,531.49, 131,309.39 and 28,348.03

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Solution

The fourth proportional to 87,531.49, 131,309.39 and 28,348.03 is: 42,525.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,531.49 : 131,309.39 = 28,348.03 : x
  2. Step 2: Convert to fraction form
    87,531.49/131,309.39 = 28,348.03/x
  3. Step 3: Cross multiply
    87,531.49x = 131,309.39 × 28,348.03
  4. Step 4: Simplify right side
    87,531.49x = 3,722,362,385.26
  5. Step 5: Solve for x
    x = 3,722,362,385.26/87,531.49
  6. Step 6: Final answer
    x = 42,525.98

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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.