Home / 84,649.20-126,982.44-29,238

Finding the Fourth Proportional to 84,649.20, 126,982.44 and 29,238

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Solution

The fourth proportional to 84,649.20, 126,982.44 and 29,238 is: 43,859.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,649.20 : 126,982.44 = 29,238 : x
  2. Step 2: Convert to fraction form
    84,649.20/126,982.44 = 29,238/x
  3. Step 3: Cross multiply
    84,649.20x = 126,982.44 × 29,238
  4. Step 4: Simplify right side
    84,649.20x = 3,712,712,580.72
  5. Step 5: Solve for x
    x = 3,712,712,580.72/84,649.20
  6. Step 6: Final answer
    x = 43,859.98

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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.