Home / 82,104.47-122,961.21-52,430.39

Finding the Fourth Proportional to 82,104.47, 122,961.21 and 52,430.39

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Solution

The fourth proportional to 82,104.47, 122,961.21 and 52,430.39 is: 78,520.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,104.47 : 122,961.21 = 52,430.39 : x
  2. Step 2: Convert to fraction form
    82,104.47/122,961.21 = 52,430.39/x
  3. Step 3: Cross multiply
    82,104.47x = 122,961.21 × 52,430.39
  4. Step 4: Simplify right side
    82,104.47x = 6,446,904,195.17
  5. Step 5: Solve for x
    x = 6,446,904,195.17/82,104.47
  6. Step 6: Final answer
    x = 78,520.75

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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.