Home / 55,230.20-76,221.80-31,033.96

Finding the Fourth Proportional to 55,230.20, 76,221.80 and 31,033.96

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Solution

The fourth proportional to 55,230.20, 76,221.80 and 31,033.96 is: 42,829.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,230.20 : 76,221.80 = 31,033.96 : x
  2. Step 2: Convert to fraction form
    55,230.20/76,221.80 = 31,033.96/x
  3. Step 3: Cross multiply
    55,230.20x = 76,221.80 × 31,033.96
  4. Step 4: Simplify right side
    55,230.20x = 2,365,464,292.33
  5. Step 5: Solve for x
    x = 2,365,464,292.33/55,230.20
  6. Step 6: Final answer
    x = 42,829.18

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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.