Home / 68,113.31-93,982.28-39,813.53

Finding the Fourth Proportional to 68,113.31, 93,982.28 and 39,813.53

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Solution

The fourth proportional to 68,113.31, 93,982.28 and 39,813.53 is: 54,934.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,113.31 : 93,982.28 = 39,813.53 : x
  2. Step 2: Convert to fraction form
    68,113.31/93,982.28 = 39,813.53/x
  3. Step 3: Cross multiply
    68,113.31x = 93,982.28 × 39,813.53
  4. Step 4: Simplify right side
    68,113.31x = 3,741,765,655.27
  5. Step 5: Solve for x
    x = 3,741,765,655.27/68,113.31
  6. Step 6: Final answer
    x = 54,934.43

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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.