Home / 80,910.40-121,346.14-41,447.20

Finding the Fourth Proportional to 80,910.40, 121,346.14 and 41,447.20

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Solution

The fourth proportional to 80,910.40, 121,346.14 and 41,447.20 is: 62,160.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,910.40 : 121,346.14 = 41,447.20 : x
  2. Step 2: Convert to fraction form
    80,910.40/121,346.14 = 41,447.20/x
  3. Step 3: Cross multiply
    80,910.40x = 121,346.14 × 41,447.20
  4. Step 4: Simplify right side
    80,910.40x = 5,029,457,733.81
  5. Step 5: Solve for x
    x = 5,029,457,733.81/80,910.40
  6. Step 6: Final answer
    x = 62,160.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.