Home / 80,179.74-120,205.62-38,038.68

Finding the Fourth Proportional to 80,179.74, 120,205.62 and 38,038.68

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Solution

The fourth proportional to 80,179.74, 120,205.62 and 38,038.68 is: 57,027.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,179.74 : 120,205.62 = 38,038.68 : x
  2. Step 2: Convert to fraction form
    80,179.74/120,205.62 = 38,038.68/x
  3. Step 3: Cross multiply
    80,179.74x = 120,205.62 × 38,038.68
  4. Step 4: Simplify right side
    80,179.74x = 4,572,463,113.38
  5. Step 5: Solve for x
    x = 4,572,463,113.38/80,179.74
  6. Step 6: Final answer
    x = 57,027.66

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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.