Home / 75,209.48-112,778.82-43,628.52

Finding the Fourth Proportional to 75,209.48, 112,778.82 and 43,628.52

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Solution

The fourth proportional to 75,209.48, 112,778.82 and 43,628.52 is: 65,422.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,209.48 : 112,778.82 = 43,628.52 : x
  2. Step 2: Convert to fraction form
    75,209.48/112,778.82 = 43,628.52/x
  3. Step 3: Cross multiply
    75,209.48x = 112,778.82 × 43,628.52
  4. Step 4: Simplify right side
    75,209.48x = 4,920,373,003.95
  5. Step 5: Solve for x
    x = 4,920,373,003.95/75,209.48
  6. Step 6: Final answer
    x = 65,422.24

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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.