Home / 80,426.72-110,991.16-44,129.81

Finding the Fourth Proportional to 80,426.72, 110,991.16 and 44,129.81

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Solution

The fourth proportional to 80,426.72, 110,991.16 and 44,129.81 is: 60,900.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,426.72 : 110,991.16 = 44,129.81 : x
  2. Step 2: Convert to fraction form
    80,426.72/110,991.16 = 44,129.81/x
  3. Step 3: Cross multiply
    80,426.72x = 110,991.16 × 44,129.81
  4. Step 4: Simplify right side
    80,426.72x = 4,898,019,135.12
  5. Step 5: Solve for x
    x = 4,898,019,135.12/80,426.72
  6. Step 6: Final answer
    x = 60,900.39

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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.