Home / 87,578.03-120,850.72-57,315.41

Finding the Fourth Proportional to 87,578.03, 120,850.72 and 57,315.41

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Solution

The fourth proportional to 87,578.03, 120,850.72 and 57,315.41 is: 79,090.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,578.03 : 120,850.72 = 57,315.41 : x
  2. Step 2: Convert to fraction form
    87,578.03/120,850.72 = 57,315.41/x
  3. Step 3: Cross multiply
    87,578.03x = 120,850.72 × 57,315.41
  4. Step 4: Simplify right side
    87,578.03x = 6,926,608,724.43
  5. Step 5: Solve for x
    x = 6,926,608,724.43/87,578.03
  6. Step 6: Final answer
    x = 79,090.72

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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.