Home / 75,318.50-112,977.72-28,571.38

Finding the Fourth Proportional to 75,318.50, 112,977.72 and 28,571.38

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Solution

The fourth proportional to 75,318.50, 112,977.72 and 28,571.38 is: 42,857.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,318.50 : 112,977.72 = 28,571.38 : x
  2. Step 2: Convert to fraction form
    75,318.50/112,977.72 = 28,571.38/x
  3. Step 3: Cross multiply
    75,318.50x = 112,977.72 × 28,571.38
  4. Step 4: Simplify right side
    75,318.50x = 3,227,929,087.21
  5. Step 5: Solve for x
    x = 3,227,929,087.21/75,318.50
  6. Step 6: Final answer
    x = 42,857.05

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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.