Home / 83,931.12-125,884.26-30,610.60

Finding the Fourth Proportional to 83,931.12, 125,884.26 and 30,610.60

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Solution

The fourth proportional to 83,931.12, 125,884.26 and 30,610.60 is: 45,911.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,931.12 : 125,884.26 = 30,610.60 : x
  2. Step 2: Convert to fraction form
    83,931.12/125,884.26 = 30,610.60/x
  3. Step 3: Cross multiply
    83,931.12x = 125,884.26 × 30,610.60
  4. Step 4: Simplify right side
    83,931.12x = 3,853,392,729.16
  5. Step 5: Solve for x
    x = 3,853,392,729.16/83,931.12
  6. Step 6: Final answer
    x = 45,911.37

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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.