Home / 80,488.07-120,850.56-45,018.86

Finding the Fourth Proportional to 80,488.07, 120,850.56 and 45,018.86

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Solution

The fourth proportional to 80,488.07, 120,850.56 and 45,018.86 is: 67,594.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,488.07 : 120,850.56 = 45,018.86 : x
  2. Step 2: Convert to fraction form
    80,488.07/120,850.56 = 45,018.86/x
  3. Step 3: Cross multiply
    80,488.07x = 120,850.56 × 45,018.86
  4. Step 4: Simplify right side
    80,488.07x = 5,440,553,837.31
  5. Step 5: Solve for x
    x = 5,440,553,837.31/80,488.07
  6. Step 6: Final answer
    x = 67,594.54

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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.