Home / 80,723.56-121,104.78-25,319.56

Finding the Fourth Proportional to 80,723.56, 121,104.78 and 25,319.56

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Solution

The fourth proportional to 80,723.56, 121,104.78 and 25,319.56 is: 37,985.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,723.56 : 121,104.78 = 25,319.56 : x
  2. Step 2: Convert to fraction form
    80,723.56/121,104.78 = 25,319.56/x
  3. Step 3: Cross multiply
    80,723.56x = 121,104.78 × 25,319.56
  4. Step 4: Simplify right side
    80,723.56x = 3,066,319,743.50
  5. Step 5: Solve for x
    x = 3,066,319,743.50/80,723.56
  6. Step 6: Final answer
    x = 37,985.44

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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.