Home / 53,419.20-80,031.60-43,504.80

Finding the Fourth Proportional to 53,419.20, 80,031.60 and 43,504.80

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Solution

The fourth proportional to 53,419.20, 80,031.60 and 43,504.80 is: 65,178.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,419.20 : 80,031.60 = 43,504.80 : x
  2. Step 2: Convert to fraction form
    53,419.20/80,031.60 = 43,504.80/x
  3. Step 3: Cross multiply
    53,419.20x = 80,031.60 × 43,504.80
  4. Step 4: Simplify right side
    53,419.20x = 3,481,758,751.68
  5. Step 5: Solve for x
    x = 3,481,758,751.68/53,419.20
  6. Step 6: Final answer
    x = 65,178.04

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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.