Home / 83,620.82-115,397.04-45,380.36

Finding the Fourth Proportional to 83,620.82, 115,397.04 and 45,380.36

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Solution

The fourth proportional to 83,620.82, 115,397.04 and 45,380.36 is: 62,625.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,620.82 : 115,397.04 = 45,380.36 : x
  2. Step 2: Convert to fraction form
    83,620.82/115,397.04 = 45,380.36/x
  3. Step 3: Cross multiply
    83,620.82x = 115,397.04 × 45,380.36
  4. Step 4: Simplify right side
    83,620.82x = 5,236,759,676.80
  5. Step 5: Solve for x
    x = 5,236,759,676.80/83,620.82
  6. Step 6: Final answer
    x = 62,625.07

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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.