Home / 84,168.23-126,207.99-28,002.42

Finding the Fourth Proportional to 84,168.23, 126,207.99 and 28,002.42

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Solution

The fourth proportional to 84,168.23, 126,207.99 and 28,002.42 is: 41,988.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,168.23 : 126,207.99 = 28,002.42 : x
  2. Step 2: Convert to fraction form
    84,168.23/126,207.99 = 28,002.42/x
  3. Step 3: Cross multiply
    84,168.23x = 126,207.99 × 28,002.42
  4. Step 4: Simplify right side
    84,168.23x = 3,534,129,143.34
  5. Step 5: Solve for x
    x = 3,534,129,143.34/84,168.23
  6. Step 6: Final answer
    x = 41,988.88

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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.