Home / 80,374.06-120,391.41-64,493.02

Finding the Fourth Proportional to 80,374.06, 120,391.41 and 64,493.02

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Solution

The fourth proportional to 80,374.06, 120,391.41 and 64,493.02 is: 96,603.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,374.06 : 120,391.41 = 64,493.02 : x
  2. Step 2: Convert to fraction form
    80,374.06/120,391.41 = 64,493.02/x
  3. Step 3: Cross multiply
    80,374.06x = 120,391.41 × 64,493.02
  4. Step 4: Simplify right side
    80,374.06x = 7,764,405,612.96
  5. Step 5: Solve for x
    x = 7,764,405,612.96/80,374.06
  6. Step 6: Final answer
    x = 96,603.38

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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.