Home / 52,390.26-78,600.87-30,219.57

Finding the Fourth Proportional to 52,390.26, 78,600.87 and 30,219.57

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Solution

The fourth proportional to 52,390.26, 78,600.87 and 30,219.57 is: 45,338.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,390.26 : 78,600.87 = 30,219.57 : x
  2. Step 2: Convert to fraction form
    52,390.26/78,600.87 = 30,219.57/x
  3. Step 3: Cross multiply
    52,390.26x = 78,600.87 × 30,219.57
  4. Step 4: Simplify right side
    52,390.26x = 2,375,284,493.03
  5. Step 5: Solve for x
    x = 2,375,284,493.03/52,390.26
  6. Step 6: Final answer
    x = 45,338.28

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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.