Home / 84,372.20-126,620.54-39,998.76

Finding the Fourth Proportional to 84,372.20, 126,620.54 and 39,998.76

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Solution

The fourth proportional to 84,372.20, 126,620.54 and 39,998.76 is: 60,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,372.20 : 126,620.54 = 39,998.76 : x
  2. Step 2: Convert to fraction form
    84,372.20/126,620.54 = 39,998.76/x
  3. Step 3: Cross multiply
    84,372.20x = 126,620.54 × 39,998.76
  4. Step 4: Simplify right side
    84,372.20x = 5,064,664,590.53
  5. Step 5: Solve for x
    x = 5,064,664,590.53/84,372.20
  6. Step 6: Final answer
    x = 60,027.65

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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.