Home / 80,418.44-111,015.54-53,605.64

Finding the Fourth Proportional to 80,418.44, 111,015.54 and 53,605.64

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Solution

The fourth proportional to 80,418.44, 111,015.54 and 53,605.64 is: 74,001.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,418.44 : 111,015.54 = 53,605.64 : x
  2. Step 2: Convert to fraction form
    80,418.44/111,015.54 = 53,605.64/x
  3. Step 3: Cross multiply
    80,418.44x = 111,015.54 × 53,605.64
  4. Step 4: Simplify right side
    80,418.44x = 5,951,059,071.65
  5. Step 5: Solve for x
    x = 5,951,059,071.65/80,418.44
  6. Step 6: Final answer
    x = 74,001.18

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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.