Home / 80,929.79-111,753.63-50,766.96

Finding the Fourth Proportional to 80,929.79, 111,753.63 and 50,766.96

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Solution

The fourth proportional to 80,929.79, 111,753.63 and 50,766.96 is: 70,102.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,929.79 : 111,753.63 = 50,766.96 : x
  2. Step 2: Convert to fraction form
    80,929.79/111,753.63 = 50,766.96/x
  3. Step 3: Cross multiply
    80,929.79x = 111,753.63 × 50,766.96
  4. Step 4: Simplify right side
    80,929.79x = 5,673,392,064.06
  5. Step 5: Solve for x
    x = 5,673,392,064.06/80,929.79
  6. Step 6: Final answer
    x = 70,102.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.