Home / 81,102.44-111,920.26-45,293.08

Finding the Fourth Proportional to 81,102.44, 111,920.26 and 45,293.08

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Solution

The fourth proportional to 81,102.44, 111,920.26 and 45,293.08 is: 62,503.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,102.44 : 111,920.26 = 45,293.08 : x
  2. Step 2: Convert to fraction form
    81,102.44/111,920.26 = 45,293.08/x
  3. Step 3: Cross multiply
    81,102.44x = 111,920.26 × 45,293.08
  4. Step 4: Simplify right side
    81,102.44x = 5,069,213,289.80
  5. Step 5: Solve for x
    x = 5,069,213,289.80/81,102.44
  6. Step 6: Final answer
    x = 62,503.83

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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.