Home / 83,637.12-125,375.04-28,202.88

Finding the Fourth Proportional to 83,637.12, 125,375.04 and 28,202.88

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Solution

The fourth proportional to 83,637.12, 125,375.04 and 28,202.88 is: 42,277.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,637.12 : 125,375.04 = 28,202.88 : x
  2. Step 2: Convert to fraction form
    83,637.12/125,375.04 = 28,202.88/x
  3. Step 3: Cross multiply
    83,637.12x = 125,375.04 × 28,202.88
  4. Step 4: Simplify right side
    83,637.12x = 3,535,937,208.12
  5. Step 5: Solve for x
    x = 3,535,937,208.12/83,637.12
  6. Step 6: Final answer
    x = 42,277.13

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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.