Home / 78,046.97-107,704.43-42,236.93

Finding the Fourth Proportional to 78,046.97, 107,704.43 and 42,236.93

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Solution

The fourth proportional to 78,046.97, 107,704.43 and 42,236.93 is: 58,286.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,046.97 : 107,704.43 = 42,236.93 : x
  2. Step 2: Convert to fraction form
    78,046.97/107,704.43 = 42,236.93/x
  3. Step 3: Cross multiply
    78,046.97x = 107,704.43 × 42,236.93
  4. Step 4: Simplify right side
    78,046.97x = 4,549,104,037.67
  5. Step 5: Solve for x
    x = 4,549,104,037.67/78,046.97
  6. Step 6: Final answer
    x = 58,286.75

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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.