Home / 80,833.86-111,512.09-62,805.48

Finding the Fourth Proportional to 80,833.86, 111,512.09 and 62,805.48

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Solution

The fourth proportional to 80,833.86, 111,512.09 and 62,805.48 is: 86,641.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,833.86 : 111,512.09 = 62,805.48 : x
  2. Step 2: Convert to fraction form
    80,833.86/111,512.09 = 62,805.48/x
  3. Step 3: Cross multiply
    80,833.86x = 111,512.09 × 62,805.48
  4. Step 4: Simplify right side
    80,833.86x = 7,003,569,466.67
  5. Step 5: Solve for x
    x = 7,003,569,466.67/80,833.86
  6. Step 6: Final answer
    x = 86,641.54

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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.