Home / 80,933.52-121,401.45-31,016.16

Finding the Fourth Proportional to 80,933.52, 121,401.45 and 31,016.16

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Solution

The fourth proportional to 80,933.52, 121,401.45 and 31,016.16 is: 46,524.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,933.52 : 121,401.45 = 31,016.16 : x
  2. Step 2: Convert to fraction form
    80,933.52/121,401.45 = 31,016.16/x
  3. Step 3: Cross multiply
    80,933.52x = 121,401.45 × 31,016.16
  4. Step 4: Simplify right side
    80,933.52x = 3,765,406,797.43
  5. Step 5: Solve for x
    x = 3,765,406,797.43/80,933.52
  6. Step 6: Final answer
    x = 46,524.69

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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.