Home / 84,371.20-126,619.04-39,997.76

Finding the Fourth Proportional to 84,371.20, 126,619.04 and 39,997.76

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Solution

The fourth proportional to 84,371.20, 126,619.04 and 39,997.76 is: 60,026.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,371.20 : 126,619.04 = 39,997.76 : x
  2. Step 2: Convert to fraction form
    84,371.20/126,619.04 = 39,997.76/x
  3. Step 3: Cross multiply
    84,371.20x = 126,619.04 × 39,997.76
  4. Step 4: Simplify right side
    84,371.20x = 5,064,477,973.35
  5. Step 5: Solve for x
    x = 5,064,477,973.35/84,371.20
  6. Step 6: Final answer
    x = 60,026.15

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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.