Home / 78,519.97-108,317.41-46,231.75

Finding the Fourth Proportional to 78,519.97, 108,317.41 and 46,231.75

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Solution

The fourth proportional to 78,519.97, 108,317.41 and 46,231.75 is: 63,776.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,519.97 : 108,317.41 = 46,231.75 : x
  2. Step 2: Convert to fraction form
    78,519.97/108,317.41 = 46,231.75/x
  3. Step 3: Cross multiply
    78,519.97x = 108,317.41 × 46,231.75
  4. Step 4: Simplify right side
    78,519.97x = 5,007,703,419.77
  5. Step 5: Solve for x
    x = 5,007,703,419.77/78,519.97
  6. Step 6: Final answer
    x = 63,776.18

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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.