Home / 87,039.04-120,113.67-49,313.29

Finding the Fourth Proportional to 87,039.04, 120,113.67 and 49,313.29

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Solution

The fourth proportional to 87,039.04, 120,113.67 and 49,313.29 is: 68,052.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,039.04 : 120,113.67 = 49,313.29 : x
  2. Step 2: Convert to fraction form
    87,039.04/120,113.67 = 49,313.29/x
  3. Step 3: Cross multiply
    87,039.04x = 120,113.67 × 49,313.29
  4. Step 4: Simplify right side
    87,039.04x = 5,923,200,241.67
  5. Step 5: Solve for x
    x = 5,923,200,241.67/87,039.04
  6. Step 6: Final answer
    x = 68,052.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.