Home / 83,590.22-125,382.09-21,262.34

Finding the Fourth Proportional to 83,590.22, 125,382.09 and 21,262.34

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Solution

The fourth proportional to 83,590.22, 125,382.09 and 21,262.34 is: 31,892.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,590.22 : 125,382.09 = 21,262.34 : x
  2. Step 2: Convert to fraction form
    83,590.22/125,382.09 = 21,262.34/x
  3. Step 3: Cross multiply
    83,590.22x = 125,382.09 × 21,262.34
  4. Step 4: Simplify right side
    83,590.22x = 2,665,916,627.49
  5. Step 5: Solve for x
    x = 2,665,916,627.49/83,590.22
  6. Step 6: Final answer
    x = 31,892.69

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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.