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Finding the Fourth Proportional to 80,360.96, 110,860.80 and 50,126.72

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Solution

The fourth proportional to 80,360.96, 110,860.80 and 50,126.72 is: 69,151.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,360.96 : 110,860.80 = 50,126.72 : x
  2. Step 2: Convert to fraction form
    80,360.96/110,860.80 = 50,126.72/x
  3. Step 3: Cross multiply
    80,360.96x = 110,860.80 × 50,126.72
  4. Step 4: Simplify right side
    80,360.96x = 5,557,088,280.58
  5. Step 5: Solve for x
    x = 5,557,088,280.58/80,360.96
  6. Step 6: Final answer
    x = 69,151.59

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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.