Home / 43,138.80-64,708.20-25,599.60

Finding the Fourth Proportional to 43,138.80, 64,708.20 and 25,599.60

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Solution

The fourth proportional to 43,138.80, 64,708.20 and 25,599.60 is: 38,399.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,138.80 : 64,708.20 = 25,599.60 : x
  2. Step 2: Convert to fraction form
    43,138.80/64,708.20 = 25,599.60/x
  3. Step 3: Cross multiply
    43,138.80x = 64,708.20 × 25,599.60
  4. Step 4: Simplify right side
    43,138.80x = 1,656,504,036.72
  5. Step 5: Solve for x
    x = 1,656,504,036.72/43,138.80
  6. Step 6: Final answer
    x = 38,399.40

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1.5x scale

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.