Home / 87,578.38-120,860.67-49,338.35

Finding the Fourth Proportional to 87,578.38, 120,860.67 and 49,338.35

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Solution

The fourth proportional to 87,578.38, 120,860.67 and 49,338.35 is: 68,088.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,578.38 : 120,860.67 = 49,338.35 : x
  2. Step 2: Convert to fraction form
    87,578.38/120,860.67 = 49,338.35/x
  3. Step 3: Cross multiply
    87,578.38x = 120,860.67 × 49,338.35
  4. Step 4: Simplify right side
    87,578.38x = 5,963,066,071.64
  5. Step 5: Solve for x
    x = 5,963,066,071.64/87,578.38
  6. Step 6: Final answer
    x = 68,088.33

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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.