Home / 80,557.76-111,236.98-67,199.03

Finding the Fourth Proportional to 80,557.76, 111,236.98 and 67,199.03

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Solution

The fourth proportional to 80,557.76, 111,236.98 and 67,199.03 is: 92,790.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,557.76 : 111,236.98 = 67,199.03 : x
  2. Step 2: Convert to fraction form
    80,557.76/111,236.98 = 67,199.03/x
  3. Step 3: Cross multiply
    80,557.76x = 111,236.98 × 67,199.03
  4. Step 4: Simplify right side
    80,557.76x = 7,475,017,266.22
  5. Step 5: Solve for x
    x = 7,475,017,266.22/80,557.76
  6. Step 6: Final answer
    x = 92,790.78

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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.