Home / 87,518.80-131,297.40-28,344.40

Finding the Fourth Proportional to 87,518.80, 131,297.40 and 28,344.40

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Solution

The fourth proportional to 87,518.80, 131,297.40 and 28,344.40 is: 42,522.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,518.80 : 131,297.40 = 28,344.40 : x
  2. Step 2: Convert to fraction form
    87,518.80/131,297.40 = 28,344.40/x
  3. Step 3: Cross multiply
    87,518.80x = 131,297.40 × 28,344.40
  4. Step 4: Simplify right side
    87,518.80x = 3,721,546,024.56
  5. Step 5: Solve for x
    x = 3,721,546,024.56/87,518.80
  6. Step 6: Final answer
    x = 42,522.82

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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.