Home / 68,721.96-94,836.26-38,507.53

Finding the Fourth Proportional to 68,721.96, 94,836.26 and 38,507.53

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Solution

The fourth proportional to 68,721.96, 94,836.26 and 38,507.53 is: 53,140.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,721.96 : 94,836.26 = 38,507.53 : x
  2. Step 2: Convert to fraction form
    68,721.96/94,836.26 = 38,507.53/x
  3. Step 3: Cross multiply
    68,721.96x = 94,836.26 × 38,507.53
  4. Step 4: Simplify right side
    68,721.96x = 3,651,909,626.55
  5. Step 5: Solve for x
    x = 3,651,909,626.55/68,721.96
  6. Step 6: Final answer
    x = 53,140.36

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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.