Home / 73,081.28-109,626.72-20,492.80

Finding the Fourth Proportional to 73,081.28, 109,626.72 and 20,492.80

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Solution

The fourth proportional to 73,081.28, 109,626.72 and 20,492.80 is: 30,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,081.28 : 109,626.72 = 20,492.80 : x
  2. Step 2: Convert to fraction form
    73,081.28/109,626.72 = 20,492.80/x
  3. Step 3: Cross multiply
    73,081.28x = 109,626.72 × 20,492.80
  4. Step 4: Simplify right side
    73,081.28x = 2,246,558,447.62
  5. Step 5: Solve for x
    x = 2,246,558,447.62/73,081.28
  6. Step 6: Final answer
    x = 30,740.55

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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.