Home / 81,292.82-112,188.45-45,480.69

Finding the Fourth Proportional to 81,292.82, 112,188.45 and 45,480.69

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Solution

The fourth proportional to 81,292.82, 112,188.45 and 45,480.69 is: 62,765.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,292.82 : 112,188.45 = 45,480.69 : x
  2. Step 2: Convert to fraction form
    81,292.82/112,188.45 = 45,480.69/x
  3. Step 3: Cross multiply
    81,292.82x = 112,188.45 × 45,480.69
  4. Step 4: Simplify right side
    81,292.82x = 5,102,408,116.03
  5. Step 5: Solve for x
    x = 5,102,408,116.03/81,292.82
  6. Step 6: Final answer
    x = 62,765.79

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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.