Home / 84,347.10-126,536.04-28,181.88

Finding the Fourth Proportional to 84,347.10, 126,536.04 and 28,181.88

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Solution

The fourth proportional to 84,347.10, 126,536.04 and 28,181.88 is: 42,277.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,347.10 : 126,536.04 = 28,181.88 : x
  2. Step 2: Convert to fraction form
    84,347.10/126,536.04 = 28,181.88/x
  3. Step 3: Cross multiply
    84,347.10x = 126,536.04 × 28,181.88
  4. Step 4: Simplify right side
    84,347.10x = 3,566,023,494.96
  5. Step 5: Solve for x
    x = 3,566,023,494.96/84,347.10
  6. Step 6: Final answer
    x = 42,277.96

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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.