Home / 48,131.20-72,175.20-18,539.20

Finding the Fourth Proportional to 48,131.20, 72,175.20 and 18,539.20

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Solution

The fourth proportional to 48,131.20, 72,175.20 and 18,539.20 is: 27,800.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,131.20 : 72,175.20 = 18,539.20 : x
  2. Step 2: Convert to fraction form
    48,131.20/72,175.20 = 18,539.20/x
  3. Step 3: Cross multiply
    48,131.20x = 72,175.20 × 18,539.20
  4. Step 4: Simplify right side
    48,131.20x = 1,338,070,467.84
  5. Step 5: Solve for x
    x = 1,338,070,467.84/48,131.20
  6. Step 6: Final answer
    x = 27,800.48

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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.