Home / 83,607.12-125,330.04-28,172.88

Finding the Fourth Proportional to 83,607.12, 125,330.04 and 28,172.88

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Solution

The fourth proportional to 83,607.12, 125,330.04 and 28,172.88 is: 42,232.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,607.12 : 125,330.04 = 28,172.88 : x
  2. Step 2: Convert to fraction form
    83,607.12/125,330.04 = 28,172.88/x
  3. Step 3: Cross multiply
    83,607.12x = 125,330.04 × 28,172.88
  4. Step 4: Simplify right side
    83,607.12x = 3,530,908,177.32
  5. Step 5: Solve for x
    x = 3,530,908,177.32/83,607.12
  6. Step 6: Final answer
    x = 42,232.15

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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.