Home / 84,540.23-126,857.02-47,121.37

Finding the Fourth Proportional to 84,540.23, 126,857.02 and 47,121.37

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Solution

The fourth proportional to 84,540.23, 126,857.02 and 47,121.37 is: 70,708.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,540.23 : 126,857.02 = 47,121.37 : x
  2. Step 2: Convert to fraction form
    84,540.23/126,857.02 = 47,121.37/x
  3. Step 3: Cross multiply
    84,540.23x = 126,857.02 × 47,121.37
  4. Step 4: Simplify right side
    84,540.23x = 5,977,676,576.52
  5. Step 5: Solve for x
    x = 5,977,676,576.52/84,540.23
  6. Step 6: Final answer
    x = 70,708.07

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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.