Home / 80,817.82-111,520.61-45,011.16

Finding the Fourth Proportional to 80,817.82, 111,520.61 and 45,011.16

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Solution

The fourth proportional to 80,817.82, 111,520.61 and 45,011.16 is: 62,110.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,817.82 : 111,520.61 = 45,011.16 : x
  2. Step 2: Convert to fraction form
    80,817.82/111,520.61 = 45,011.16/x
  3. Step 3: Cross multiply
    80,817.82x = 111,520.61 × 45,011.16
  4. Step 4: Simplify right side
    80,817.82x = 5,019,672,020.01
  5. Step 5: Solve for x
    x = 5,019,672,020.01/80,817.82
  6. Step 6: Final answer
    x = 62,110.96

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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.