Home / 80,910.90-111,660.84-45,101.16

Finding the Fourth Proportional to 80,910.90, 111,660.84 and 45,101.16

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Solution

The fourth proportional to 80,910.90, 111,660.84 and 45,101.16 is: 62,241.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,910.90 : 111,660.84 = 45,101.16 : x
  2. Step 2: Convert to fraction form
    80,910.90/111,660.84 = 45,101.16/x
  3. Step 3: Cross multiply
    80,910.90x = 111,660.84 × 45,101.16
  4. Step 4: Simplify right side
    80,910.90x = 5,036,033,410.57
  5. Step 5: Solve for x
    x = 5,036,033,410.57/80,910.90
  6. Step 6: Final answer
    x = 62,241.72

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1.5x scale

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.