Home / 55,229.90-76,214.97-31,357.89

Finding the Fourth Proportional to 55,229.90, 76,214.97 and 31,357.89

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Solution

The fourth proportional to 55,229.90, 76,214.97 and 31,357.89 is: 43,272.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,229.90 : 76,214.97 = 31,357.89 : x
  2. Step 2: Convert to fraction form
    55,229.90/76,214.97 = 31,357.89/x
  3. Step 3: Cross multiply
    55,229.90x = 76,214.97 × 31,357.89
  4. Step 4: Simplify right side
    55,229.90x = 2,389,940,645.61
  5. Step 5: Solve for x
    x = 2,389,940,645.61/55,229.90
  6. Step 6: Final answer
    x = 43,272.59

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1.5x scale

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.