Home / 80,924.54-121,394.04-21,758.90

Finding the Fourth Proportional to 80,924.54, 121,394.04 and 21,758.90

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Solution

The fourth proportional to 80,924.54, 121,394.04 and 21,758.90 is: 32,640.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,924.54 : 121,394.04 = 21,758.90 : x
  2. Step 2: Convert to fraction form
    80,924.54/121,394.04 = 21,758.90/x
  3. Step 3: Cross multiply
    80,924.54x = 121,394.04 × 21,758.90
  4. Step 4: Simplify right side
    80,924.54x = 2,641,400,776.96
  5. Step 5: Solve for x
    x = 2,641,400,776.96/80,924.54
  6. Step 6: Final answer
    x = 32,640.29

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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.