Home / 87,187.66-120,325.92-48,949.72

Finding the Fourth Proportional to 87,187.66, 120,325.92 and 48,949.72

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Solution

The fourth proportional to 87,187.66, 120,325.92 and 48,949.72 is: 67,554.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,187.66 : 120,325.92 = 48,949.72 : x
  2. Step 2: Convert to fraction form
    87,187.66/120,325.92 = 48,949.72/x
  3. Step 3: Cross multiply
    87,187.66x = 120,325.92 × 48,949.72
  4. Step 4: Simplify right side
    87,187.66x = 5,889,919,641.72
  5. Step 5: Solve for x
    x = 5,889,919,641.72/87,187.66
  6. Step 6: Final answer
    x = 67,554.51

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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.