Home / 87,401.13-120,617.16-49,162.46

Finding the Fourth Proportional to 87,401.13, 120,617.16 and 49,162.46

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Solution

The fourth proportional to 87,401.13, 120,617.16 and 49,162.46 is: 67,846.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,401.13 : 120,617.16 = 49,162.46 : x
  2. Step 2: Convert to fraction form
    87,401.13/120,617.16 = 49,162.46/x
  3. Step 3: Cross multiply
    87,401.13x = 120,617.16 × 49,162.46
  4. Step 4: Simplify right side
    87,401.13x = 5,929,836,303.81
  5. Step 5: Solve for x
    x = 5,929,836,303.81/87,401.13
  6. Step 6: Final answer
    x = 67,846.22

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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.