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Finding the Fourth Proportional to 80,361.96, 110,862.18 and 50,127.72

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Solution

The fourth proportional to 80,361.96, 110,862.18 and 50,127.72 is: 69,152.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,361.96 : 110,862.18 = 50,127.72 : x
  2. Step 2: Convert to fraction form
    80,361.96/110,862.18 = 50,127.72/x
  3. Step 3: Cross multiply
    80,361.96x = 110,862.18 × 50,127.72
  4. Step 4: Simplify right side
    80,361.96x = 5,557,268,317.63
  5. Step 5: Solve for x
    x = 5,557,268,317.63/80,361.96
  6. Step 6: Final answer
    x = 69,152.97

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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.