Home / 84,191.72-126,372.92-42,101.88

Finding the Fourth Proportional to 84,191.72, 126,372.92 and 42,101.88

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Solution

The fourth proportional to 84,191.72, 126,372.92 and 42,101.88 is: 63,195.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,191.72 : 126,372.92 = 42,101.88 : x
  2. Step 2: Convert to fraction form
    84,191.72/126,372.92 = 42,101.88/x
  3. Step 3: Cross multiply
    84,191.72x = 126,372.92 × 42,101.88
  4. Step 4: Simplify right side
    84,191.72x = 5,320,537,302.58
  5. Step 5: Solve for x
    x = 5,320,537,302.58/84,191.72
  6. Step 6: Final answer
    x = 63,195.50

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1.5x scale

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.