Home / 48,134.40-72,163.20-20,409.60

Finding the Fourth Proportional to 48,134.40, 72,163.20 and 20,409.60

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Solution

The fourth proportional to 48,134.40, 72,163.20 and 20,409.60 is: 30,598.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,134.40 : 72,163.20 = 20,409.60 : x
  2. Step 2: Convert to fraction form
    48,134.40/72,163.20 = 20,409.60/x
  3. Step 3: Cross multiply
    48,134.40x = 72,163.20 × 20,409.60
  4. Step 4: Simplify right side
    48,134.40x = 1,472,822,046.72
  5. Step 5: Solve for x
    x = 1,472,822,046.72/48,134.40
  6. Step 6: Final answer
    x = 30,598.12

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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.