Home / 52,820.54-79,231.20-13,377.78

Finding the Fourth Proportional to 52,820.54, 79,231.20 and 13,377.78

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Solution

The fourth proportional to 52,820.54, 79,231.20 and 13,377.78 is: 20,066.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,820.54 : 79,231.20 = 13,377.78 : x
  2. Step 2: Convert to fraction form
    52,820.54/79,231.20 = 13,377.78/x
  3. Step 3: Cross multiply
    52,820.54x = 79,231.20 × 13,377.78
  4. Step 4: Simplify right side
    52,820.54x = 1,059,937,562.74
  5. Step 5: Solve for x
    x = 1,059,937,562.74/52,820.54
  6. Step 6: Final answer
    x = 20,066.77

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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.