Home / 75,530.28-113,306.28-28,141.44

Finding the Fourth Proportional to 75,530.28, 113,306.28 and 28,141.44

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Solution

The fourth proportional to 75,530.28, 113,306.28 and 28,141.44 is: 42,216.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,530.28 : 113,306.28 = 28,141.44 : x
  2. Step 2: Convert to fraction form
    75,530.28/113,306.28 = 28,141.44/x
  3. Step 3: Cross multiply
    75,530.28x = 113,306.28 × 28,141.44
  4. Step 4: Simplify right side
    75,530.28x = 3,188,601,880.24
  5. Step 5: Solve for x
    x = 3,188,601,880.24/75,530.28
  6. Step 6: Final answer
    x = 42,216.21

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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.