Home / 80,558.98-111,174.55-55,118.70

Finding the Fourth Proportional to 80,558.98, 111,174.55 and 55,118.70

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Solution

The fourth proportional to 80,558.98, 111,174.55 and 55,118.70 is: 76,065.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,558.98 : 111,174.55 = 55,118.70 : x
  2. Step 2: Convert to fraction form
    80,558.98/111,174.55 = 55,118.70/x
  3. Step 3: Cross multiply
    80,558.98x = 111,174.55 × 55,118.70
  4. Step 4: Simplify right side
    80,558.98x = 6,127,796,531.29
  5. Step 5: Solve for x
    x = 6,127,796,531.29/80,558.98
  6. Step 6: Final answer
    x = 76,065.97

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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.