Home / 84,024.96-126,047.19-27,870

Finding the Fourth Proportional to 84,024.96, 126,047.19 and 27,870

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Solution

The fourth proportional to 84,024.96, 126,047.19 and 27,870 is: 41,808.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,024.96 : 126,047.19 = 27,870 : x
  2. Step 2: Convert to fraction form
    84,024.96/126,047.19 = 27,870/x
  3. Step 3: Cross multiply
    84,024.96x = 126,047.19 × 27,870
  4. Step 4: Simplify right side
    84,024.96x = 3,512,935,185.30
  5. Step 5: Solve for x
    x = 3,512,935,185.30/84,024.96
  6. Step 6: Final answer
    x = 41,808.23

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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.