Home / 84,180.79-126,234.03-31,553.37

Finding the Fourth Proportional to 84,180.79, 126,234.03 and 31,553.37

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Solution

The fourth proportional to 84,180.79, 126,234.03 and 31,553.37 is: 47,316.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,180.79 : 126,234.03 = 31,553.37 : x
  2. Step 2: Convert to fraction form
    84,180.79/126,234.03 = 31,553.37/x
  3. Step 3: Cross multiply
    84,180.79x = 126,234.03 × 31,553.37
  4. Step 4: Simplify right side
    84,180.79x = 3,983,109,055.18
  5. Step 5: Solve for x
    x = 3,983,109,055.18/84,180.79
  6. Step 6: Final answer
    x = 47,316.13

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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.