Home / 78,523.05-117,739.81-53,593.28

Finding the Fourth Proportional to 78,523.05, 117,739.81 and 53,593.28

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Solution

The fourth proportional to 78,523.05, 117,739.81 and 53,593.28 is: 80,359.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,523.05 : 117,739.81 = 53,593.28 : x
  2. Step 2: Convert to fraction form
    78,523.05/117,739.81 = 53,593.28/x
  3. Step 3: Cross multiply
    78,523.05x = 117,739.81 × 53,593.28
  4. Step 4: Simplify right side
    78,523.05x = 6,310,062,604.48
  5. Step 5: Solve for x
    x = 6,310,062,604.48/78,523.05
  6. Step 6: Final answer
    x = 80,359.37

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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.