Home / 71,220.15-106,763.40-26,876.70

Finding the Fourth Proportional to 71,220.15, 106,763.40 and 26,876.70

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Solution

The fourth proportional to 71,220.15, 106,763.40 and 26,876.70 is: 40,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,220.15 : 106,763.40 = 26,876.70 : x
  2. Step 2: Convert to fraction form
    71,220.15/106,763.40 = 26,876.70/x
  3. Step 3: Cross multiply
    71,220.15x = 106,763.40 × 26,876.70
  4. Step 4: Simplify right side
    71,220.15x = 2,869,447,872.78
  5. Step 5: Solve for x
    x = 2,869,447,872.78/71,220.15
  6. Step 6: Final answer
    x = 40,289.83

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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.