Home / 47,982.20-71,973.30-45,390.20

Finding the Fourth Proportional to 47,982.20, 71,973.30 and 45,390.20

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Solution

The fourth proportional to 47,982.20, 71,973.30 and 45,390.20 is: 68,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,982.20 : 71,973.30 = 45,390.20 : x
  2. Step 2: Convert to fraction form
    47,982.20/71,973.30 = 45,390.20/x
  3. Step 3: Cross multiply
    47,982.20x = 71,973.30 × 45,390.20
  4. Step 4: Simplify right side
    47,982.20x = 3,266,882,481.66
  5. Step 5: Solve for x
    x = 3,266,882,481.66/47,982.20
  6. Step 6: Final answer
    x = 68,085.30

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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.