Home / 87,734.90-131,602.19-28,570.47

Finding the Fourth Proportional to 87,734.90, 131,602.19 and 28,570.47

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Solution

The fourth proportional to 87,734.90, 131,602.19 and 28,570.47 is: 42,855.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,734.90 : 131,602.19 = 28,570.47 : x
  2. Step 2: Convert to fraction form
    87,734.90/131,602.19 = 28,570.47/x
  3. Step 3: Cross multiply
    87,734.90x = 131,602.19 × 28,570.47
  4. Step 4: Simplify right side
    87,734.90x = 3,759,936,278.48
  5. Step 5: Solve for x
    x = 3,759,936,278.48/87,734.90
  6. Step 6: Final answer
    x = 42,855.65

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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.