Home / 84,401.07-126,538.56-51,113.04

Finding the Fourth Proportional to 84,401.07, 126,538.56 and 51,113.04

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Solution

The fourth proportional to 84,401.07, 126,538.56 and 51,113.04 is: 76,631.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,401.07 : 126,538.56 = 51,113.04 : x
  2. Step 2: Convert to fraction form
    84,401.07/126,538.56 = 51,113.04/x
  3. Step 3: Cross multiply
    84,401.07x = 126,538.56 × 51,113.04
  4. Step 4: Simplify right side
    84,401.07x = 6,467,770,478.82
  5. Step 5: Solve for x
    x = 6,467,770,478.82/84,401.07
  6. Step 6: Final answer
    x = 76,631.38

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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.