Home / 80,965.92-111,666.96-67,995.20

Finding the Fourth Proportional to 80,965.92, 111,666.96 and 67,995.20

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Solution

The fourth proportional to 80,965.92, 111,666.96 and 67,995.20 is: 93,777.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,965.92 : 111,666.96 = 67,995.20 : x
  2. Step 2: Convert to fraction form
    80,965.92/111,666.96 = 67,995.20/x
  3. Step 3: Cross multiply
    80,965.92x = 111,666.96 × 67,995.20
  4. Step 4: Simplify right side
    80,965.92x = 7,592,817,278.59
  5. Step 5: Solve for x
    x = 7,592,817,278.59/80,965.92
  6. Step 6: Final answer
    x = 93,777.94

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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.