Home / 65,645.20-98,516.40-43,451.20

Finding the Fourth Proportional to 65,645.20, 98,516.40 and 43,451.20

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Solution

The fourth proportional to 65,645.20, 98,516.40 and 43,451.20 is: 65,208.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,645.20 : 98,516.40 = 43,451.20 : x
  2. Step 2: Convert to fraction form
    65,645.20/98,516.40 = 43,451.20/x
  3. Step 3: Cross multiply
    65,645.20x = 98,516.40 × 43,451.20
  4. Step 4: Simplify right side
    65,645.20x = 4,280,655,799.68
  5. Step 5: Solve for x
    x = 4,280,655,799.68/65,645.20
  6. Step 6: Final answer
    x = 65,208.97

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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.