Home / 52,076.34-78,114.62-18,819.89

Finding the Fourth Proportional to 52,076.34, 78,114.62 and 18,819.89

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Solution

The fourth proportional to 52,076.34, 78,114.62 and 18,819.89 is: 28,229.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,076.34 : 78,114.62 = 18,819.89 : x
  2. Step 2: Convert to fraction form
    52,076.34/78,114.62 = 18,819.89/x
  3. Step 3: Cross multiply
    52,076.34x = 78,114.62 × 18,819.89
  4. Step 4: Simplify right side
    52,076.34x = 1,470,108,555.79
  5. Step 5: Solve for x
    x = 1,470,108,555.79/52,076.34
  6. Step 6: Final answer
    x = 28,229.87

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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.