Home / 80,656.48-111,215.92-55,166.96

Finding the Fourth Proportional to 80,656.48, 111,215.92 and 55,166.96

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Solution

The fourth proportional to 80,656.48, 111,215.92 and 55,166.96 is: 76,068.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,656.48 : 111,215.92 = 55,166.96 : x
  2. Step 2: Convert to fraction form
    80,656.48/111,215.92 = 55,166.96/x
  3. Step 3: Cross multiply
    80,656.48x = 111,215.92 × 55,166.96
  4. Step 4: Simplify right side
    80,656.48x = 6,135,444,210.00
  5. Step 5: Solve for x
    x = 6,135,444,210.00/80,656.48
  6. Step 6: Final answer
    x = 76,068.83

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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.