Home / 61,171.05-91,756.58-51,839.85

Finding the Fourth Proportional to 61,171.05, 91,756.58 and 51,839.85

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Solution

The fourth proportional to 61,171.05, 91,756.58 and 51,839.85 is: 77,759.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,171.05 : 91,756.58 = 51,839.85 : x
  2. Step 2: Convert to fraction form
    61,171.05/91,756.58 = 51,839.85/x
  3. Step 3: Cross multiply
    61,171.05x = 91,756.58 × 51,839.85
  4. Step 4: Simplify right side
    61,171.05x = 4,756,647,343.71
  5. Step 5: Solve for x
    x = 4,756,647,343.71/61,171.05
  6. Step 6: Final answer
    x = 77,759.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.