Home / 75,149.82-103,705.79-42,883.61

Finding the Fourth Proportional to 75,149.82, 103,705.79 and 42,883.61

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Solution

The fourth proportional to 75,149.82, 103,705.79 and 42,883.61 is: 59,178.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,149.82 : 103,705.79 = 42,883.61 : x
  2. Step 2: Convert to fraction form
    75,149.82/103,705.79 = 42,883.61/x
  3. Step 3: Cross multiply
    75,149.82x = 103,705.79 × 42,883.61
  4. Step 4: Simplify right side
    75,149.82x = 4,447,277,920.15
  5. Step 5: Solve for x
    x = 4,447,277,920.15/75,149.82
  6. Step 6: Final answer
    x = 59,178.82

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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.