Home / 61,230.20-91,845.30-21,831.80

Finding the Fourth Proportional to 61,230.20, 91,845.30 and 21,831.80

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Solution

The fourth proportional to 61,230.20, 91,845.30 and 21,831.80 is: 32,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,230.20 : 91,845.30 = 21,831.80 : x
  2. Step 2: Convert to fraction form
    61,230.20/91,845.30 = 21,831.80/x
  3. Step 3: Cross multiply
    61,230.20x = 91,845.30 × 21,831.80
  4. Step 4: Simplify right side
    61,230.20x = 2,005,148,220.54
  5. Step 5: Solve for x
    x = 2,005,148,220.54/61,230.20
  6. Step 6: Final answer
    x = 32,747.70

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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.