Home / 36,447.10-54,670.62-28,139.20

Finding the Fourth Proportional to 36,447.10, 54,670.62 and 28,139.20

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Solution

The fourth proportional to 36,447.10, 54,670.62 and 28,139.20 is: 42,208.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,447.10 : 54,670.62 = 28,139.20 : x
  2. Step 2: Convert to fraction form
    36,447.10/54,670.62 = 28,139.20/x
  3. Step 3: Cross multiply
    36,447.10x = 54,670.62 × 28,139.20
  4. Step 4: Simplify right side
    36,447.10x = 1,538,387,510.30
  5. Step 5: Solve for x
    x = 1,538,387,510.30/36,447.10
  6. Step 6: Final answer
    x = 42,208.78

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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.