Home / 76,131.32-114,131.36-36,634.12

Finding the Fourth Proportional to 76,131.32, 114,131.36 and 36,634.12

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Solution

The fourth proportional to 76,131.32, 114,131.36 and 36,634.12 is: 54,919.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,131.32 : 114,131.36 = 36,634.12 : x
  2. Step 2: Convert to fraction form
    76,131.32/114,131.36 = 36,634.12/x
  3. Step 3: Cross multiply
    76,131.32x = 114,131.36 × 36,634.12
  4. Step 4: Simplify right side
    76,131.32x = 4,181,101,938.00
  5. Step 5: Solve for x
    x = 4,181,101,938.00/76,131.32
  6. Step 6: Final answer
    x = 54,919.60

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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.