Home / 87,017.18-120,091.29-49,289

Finding the Fourth Proportional to 87,017.18, 120,091.29 and 49,289

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Solution

The fourth proportional to 87,017.18, 120,091.29 and 49,289 is: 68,023.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,017.18 : 120,091.29 = 49,289 : x
  2. Step 2: Convert to fraction form
    87,017.18/120,091.29 = 49,289/x
  3. Step 3: Cross multiply
    87,017.18x = 120,091.29 × 49,289
  4. Step 4: Simplify right side
    87,017.18x = 5,919,179,592.81
  5. Step 5: Solve for x
    x = 5,919,179,592.81/87,017.18
  6. Step 6: Final answer
    x = 68,023.11

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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.