Home / 55,334.40-82,951.20-20,265.60

Finding the Fourth Proportional to 55,334.40, 82,951.20 and 20,265.60

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Solution

The fourth proportional to 55,334.40, 82,951.20 and 20,265.60 is: 30,379.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,334.40 : 82,951.20 = 20,265.60 : x
  2. Step 2: Convert to fraction form
    55,334.40/82,951.20 = 20,265.60/x
  3. Step 3: Cross multiply
    55,334.40x = 82,951.20 × 20,265.60
  4. Step 4: Simplify right side
    55,334.40x = 1,681,055,838.72
  5. Step 5: Solve for x
    x = 1,681,055,838.72/55,334.40
  6. Step 6: Final answer
    x = 30,379.94

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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.