Home / 52,081.20-78,121.89-18,824.73

Finding the Fourth Proportional to 52,081.20, 78,121.89 and 18,824.73

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Solution

The fourth proportional to 52,081.20, 78,121.89 and 18,824.73 is: 28,237.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,081.20 : 78,121.89 = 18,824.73 : x
  2. Step 2: Convert to fraction form
    52,081.20/78,121.89 = 18,824.73/x
  3. Step 3: Cross multiply
    52,081.20x = 78,121.89 × 18,824.73
  4. Step 4: Simplify right side
    52,081.20x = 1,470,623,486.34
  5. Step 5: Solve for x
    x = 1,470,623,486.34/52,081.20
  6. Step 6: Final answer
    x = 28,237.13

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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.