Home / 80,664.91-120,862.81-56,933.56

Finding the Fourth Proportional to 80,664.91, 120,862.81 and 56,933.56

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Solution

The fourth proportional to 80,664.91, 120,862.81 and 56,933.56 is: 85,305.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,664.91 : 120,862.81 = 56,933.56 : x
  2. Step 2: Convert to fraction form
    80,664.91/120,862.81 = 56,933.56/x
  3. Step 3: Cross multiply
    80,664.91x = 120,862.81 × 56,933.56
  4. Step 4: Simplify right side
    80,664.91x = 6,881,150,044.90
  5. Step 5: Solve for x
    x = 6,881,150,044.90/80,664.91
  6. Step 6: Final answer
    x = 85,305.37

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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.