Home / 75,685.54-113,325.28-42,310.55

Finding the Fourth Proportional to 75,685.54, 113,325.28 and 42,310.55

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Solution

The fourth proportional to 75,685.54, 113,325.28 and 42,310.55 is: 63,352.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,685.54 : 113,325.28 = 42,310.55 : x
  2. Step 2: Convert to fraction form
    75,685.54/113,325.28 = 42,310.55/x
  3. Step 3: Cross multiply
    75,685.54x = 113,325.28 × 42,310.55
  4. Step 4: Simplify right side
    75,685.54x = 4,794,855,103.24
  5. Step 5: Solve for x
    x = 4,794,855,103.24/75,685.54
  6. Step 6: Final answer
    x = 63,352.33

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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.