Home / 77,138.56-106,431.72-45,301.24

Finding the Fourth Proportional to 77,138.56, 106,431.72 and 45,301.24

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Solution

The fourth proportional to 77,138.56, 106,431.72 and 45,301.24 is: 62,504.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,138.56 : 106,431.72 = 45,301.24 : x
  2. Step 2: Convert to fraction form
    77,138.56/106,431.72 = 45,301.24/x
  3. Step 3: Cross multiply
    77,138.56x = 106,431.72 × 45,301.24
  4. Step 4: Simplify right side
    77,138.56x = 4,821,488,891.33
  5. Step 5: Solve for x
    x = 4,821,488,891.33/77,138.56
  6. Step 6: Final answer
    x = 62,504.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.