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Finding the Fourth Proportional to 78,278.83, 108,024.81 and 44,286.62

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Solution

The fourth proportional to 78,278.83, 108,024.81 and 44,286.62 is: 61,115.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,278.83 : 108,024.81 = 44,286.62 : x
  2. Step 2: Convert to fraction form
    78,278.83/108,024.81 = 44,286.62/x
  3. Step 3: Cross multiply
    78,278.83x = 108,024.81 × 44,286.62
  4. Step 4: Simplify right side
    78,278.83x = 4,784,054,289.97
  5. Step 5: Solve for x
    x = 4,784,054,289.97/78,278.83
  6. Step 6: Final answer
    x = 61,115.56

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1.5x scale

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.