Home / 81,041.64-111,837.60-45,231.65

Finding the Fourth Proportional to 81,041.64, 111,837.60 and 45,231.65

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Solution

The fourth proportional to 81,041.64, 111,837.60 and 45,231.65 is: 62,419.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,041.64 : 111,837.60 = 45,231.65 : x
  2. Step 2: Convert to fraction form
    81,041.64/111,837.60 = 45,231.65/x
  3. Step 3: Cross multiply
    81,041.64x = 111,837.60 × 45,231.65
  4. Step 4: Simplify right side
    81,041.64x = 5,058,598,620.85
  5. Step 5: Solve for x
    x = 5,058,598,620.85/81,041.64
  6. Step 6: Final answer
    x = 62,419.75

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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.