Home / 71,579.37-98,778.99-39,748.38

Finding the Fourth Proportional to 71,579.37, 98,778.99 and 39,748.38

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Solution

The fourth proportional to 71,579.37, 98,778.99 and 39,748.38 is: 54,852.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,579.37 : 98,778.99 = 39,748.38 : x
  2. Step 2: Convert to fraction form
    71,579.37/98,778.99 = 39,748.38/x
  3. Step 3: Cross multiply
    71,579.37x = 98,778.99 × 39,748.38
  4. Step 4: Simplify right side
    71,579.37x = 3,926,304,830.54
  5. Step 5: Solve for x
    x = 3,926,304,830.54/71,579.37
  6. Step 6: Final answer
    x = 54,852.46

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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.