Home / 80,242.38-120,388.76-48,258.26

Finding the Fourth Proportional to 80,242.38, 120,388.76 and 48,258.26

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Solution

The fourth proportional to 80,242.38, 120,388.76 and 48,258.26 is: 72,402.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,242.38 : 120,388.76 = 48,258.26 : x
  2. Step 2: Convert to fraction form
    80,242.38/120,388.76 = 48,258.26/x
  3. Step 3: Cross multiply
    80,242.38x = 120,388.76 × 48,258.26
  4. Step 4: Simplify right side
    80,242.38x = 5,809,752,081.16
  5. Step 5: Solve for x
    x = 5,809,752,081.16/80,242.38
  6. Step 6: Final answer
    x = 72,402.54

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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.