Home / 87,621.90-131,437.52-28,453.23

Finding the Fourth Proportional to 87,621.90, 131,437.52 and 28,453.23

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Solution

The fourth proportional to 87,621.90, 131,437.52 and 28,453.23 is: 42,681.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,621.90 : 131,437.52 = 28,453.23 : x
  2. Step 2: Convert to fraction form
    87,621.90/131,437.52 = 28,453.23/x
  3. Step 3: Cross multiply
    87,621.90x = 131,437.52 × 28,453.23
  4. Step 4: Simplify right side
    87,621.90x = 3,739,821,844.92
  5. Step 5: Solve for x
    x = 3,739,821,844.92/87,621.90
  6. Step 6: Final answer
    x = 42,681.36

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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.