Home / 54,478.20-81,498.60-47,163.90

Finding the Fourth Proportional to 54,478.20, 81,498.60 and 47,163.90

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Solution

The fourth proportional to 54,478.20, 81,498.60 and 47,163.90 is: 70,556.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,478.20 : 81,498.60 = 47,163.90 : x
  2. Step 2: Convert to fraction form
    54,478.20/81,498.60 = 47,163.90/x
  3. Step 3: Cross multiply
    54,478.20x = 81,498.60 × 47,163.90
  4. Step 4: Simplify right side
    54,478.20x = 3,843,791,820.54
  5. Step 5: Solve for x
    x = 3,843,791,820.54/54,478.20
  6. Step 6: Final answer
    x = 70,556.51

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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.