Home / 76,754.40-115,147.32-32,381.28

Finding the Fourth Proportional to 76,754.40, 115,147.32 and 32,381.28

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Solution

The fourth proportional to 76,754.40, 115,147.32 and 32,381.28 is: 48,578.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,754.40 : 115,147.32 = 32,381.28 : x
  2. Step 2: Convert to fraction form
    76,754.40/115,147.32 = 32,381.28/x
  3. Step 3: Cross multiply
    76,754.40x = 115,147.32 × 32,381.28
  4. Step 4: Simplify right side
    76,754.40x = 3,728,617,610.17
  5. Step 5: Solve for x
    x = 3,728,617,610.17/76,754.40
  6. Step 6: Final answer
    x = 48,578.55

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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.