Home / 84,720.40-126,997.98-40,335.22

Finding the Fourth Proportional to 84,720.40, 126,997.98 and 40,335.22

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Solution

The fourth proportional to 84,720.40, 126,997.98 and 40,335.22 is: 60,463.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,720.40 : 126,997.98 = 40,335.22 : x
  2. Step 2: Convert to fraction form
    84,720.40/126,997.98 = 40,335.22/x
  3. Step 3: Cross multiply
    84,720.40x = 126,997.98 × 40,335.22
  4. Step 4: Simplify right side
    84,720.40x = 5,122,491,462.86
  5. Step 5: Solve for x
    x = 5,122,491,462.86/84,720.40
  6. Step 6: Final answer
    x = 60,463.49

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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.