Home / 87,377.50-120,579.84-49,143.39

Finding the Fourth Proportional to 87,377.50, 120,579.84 and 49,143.39

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Solution

The fourth proportional to 87,377.50, 120,579.84 and 49,143.39 is: 67,817.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,377.50 : 120,579.84 = 49,143.39 : x
  2. Step 2: Convert to fraction form
    87,377.50/120,579.84 = 49,143.39/x
  3. Step 3: Cross multiply
    87,377.50x = 120,579.84 × 49,143.39
  4. Step 4: Simplify right side
    87,377.50x = 5,925,702,103.26
  5. Step 5: Solve for x
    x = 5,925,702,103.26/87,377.50
  6. Step 6: Final answer
    x = 67,817.25

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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.