Home / 80,902.44-111,643.80-45,091.68

Finding the Fourth Proportional to 80,902.44, 111,643.80 and 45,091.68

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Solution

The fourth proportional to 80,902.44, 111,643.80 and 45,091.68 is: 62,225.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,902.44 : 111,643.80 = 45,091.68 : x
  2. Step 2: Convert to fraction form
    80,902.44/111,643.80 = 45,091.68/x
  3. Step 3: Cross multiply
    80,902.44x = 111,643.80 × 45,091.68
  4. Step 4: Simplify right side
    80,902.44x = 5,034,206,503.58
  5. Step 5: Solve for x
    x = 5,034,206,503.58/80,902.44
  6. Step 6: Final answer
    x = 62,225.64

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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.