Home / 55,680.75-76,838.49-31,481.31

Finding the Fourth Proportional to 55,680.75, 76,838.49 and 31,481.31

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Solution

The fourth proportional to 55,680.75, 76,838.49 and 31,481.31 is: 43,443.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,680.75 : 76,838.49 = 31,481.31 : x
  2. Step 2: Convert to fraction form
    55,680.75/76,838.49 = 31,481.31/x
  3. Step 3: Cross multiply
    55,680.75x = 76,838.49 × 31,481.31
  4. Step 4: Simplify right side
    55,680.75x = 2,418,976,323.62
  5. Step 5: Solve for x
    x = 2,418,976,323.62/55,680.75
  6. Step 6: Final answer
    x = 43,443.67

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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.