Home / 81,538.54-112,535.48-49,725.89

Finding the Fourth Proportional to 81,538.54, 112,535.48 and 49,725.89

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Solution

The fourth proportional to 81,538.54, 112,535.48 and 49,725.89 is: 68,629.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,538.54 : 112,535.48 = 49,725.89 : x
  2. Step 2: Convert to fraction form
    81,538.54/112,535.48 = 49,725.89/x
  3. Step 3: Cross multiply
    81,538.54x = 112,535.48 × 49,725.89
  4. Step 4: Simplify right side
    81,538.54x = 5,595,926,336.90
  5. Step 5: Solve for x
    x = 5,595,926,336.90/81,538.54
  6. Step 6: Final answer
    x = 68,629.22

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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.