Home / 76,519.22-114,629.36-43,138.32

Finding the Fourth Proportional to 76,519.22, 114,629.36 and 43,138.32

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Solution

The fourth proportional to 76,519.22, 114,629.36 and 43,138.32 is: 64,623.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,519.22 : 114,629.36 = 43,138.32 : x
  2. Step 2: Convert to fraction form
    76,519.22/114,629.36 = 43,138.32/x
  3. Step 3: Cross multiply
    76,519.22x = 114,629.36 × 43,138.32
  4. Step 4: Simplify right side
    76,519.22x = 4,944,918,013.08
  5. Step 5: Solve for x
    x = 4,944,918,013.08/76,519.22
  6. Step 6: Final answer
    x = 64,623.22

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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.