Home / 78,298.87-117,452.41-36,218.26

Finding the Fourth Proportional to 78,298.87, 117,452.41 and 36,218.26

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Solution

The fourth proportional to 78,298.87, 117,452.41 and 36,218.26 is: 54,329.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,298.87 : 117,452.41 = 36,218.26 : x
  2. Step 2: Convert to fraction form
    78,298.87/117,452.41 = 36,218.26/x
  3. Step 3: Cross multiply
    78,298.87x = 117,452.41 × 36,218.26
  4. Step 4: Simplify right side
    78,298.87x = 4,253,921,923.01
  5. Step 5: Solve for x
    x = 4,253,921,923.01/78,298.87
  6. Step 6: Final answer
    x = 54,329.29

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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.