Home / 55,212.33-76,190.31-31,338.66

Finding the Fourth Proportional to 55,212.33, 76,190.31 and 31,338.66

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Solution

The fourth proportional to 55,212.33, 76,190.31 and 31,338.66 is: 43,245.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,212.33 : 76,190.31 = 31,338.66 : x
  2. Step 2: Convert to fraction form
    55,212.33/76,190.31 = 31,338.66/x
  3. Step 3: Cross multiply
    55,212.33x = 76,190.31 × 31,338.66
  4. Step 4: Simplify right side
    55,212.33x = 2,387,702,220.38
  5. Step 5: Solve for x
    x = 2,387,702,220.38/55,212.33
  6. Step 6: Final answer
    x = 43,245.82

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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.