Home / 68,870.31-95,039.78-38,653.26

Finding the Fourth Proportional to 68,870.31, 95,039.78 and 38,653.26

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Solution

The fourth proportional to 68,870.31, 95,039.78 and 38,653.26 is: 53,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,870.31 : 95,039.78 = 38,653.26 : x
  2. Step 2: Convert to fraction form
    68,870.31/95,039.78 = 38,653.26/x
  3. Step 3: Cross multiply
    68,870.31x = 95,039.78 × 38,653.26
  4. Step 4: Simplify right side
    68,870.31x = 3,673,597,326.68
  5. Step 5: Solve for x
    x = 3,673,597,326.68/68,870.31
  6. Step 6: Final answer
    x = 53,340.80

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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.