Home / 76,555.64-114,839.22-20,395.52

Finding the Fourth Proportional to 76,555.64, 114,839.22 and 20,395.52

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Solution

The fourth proportional to 76,555.64, 114,839.22 and 20,395.52 is: 30,594.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,555.64 : 114,839.22 = 20,395.52 : x
  2. Step 2: Convert to fraction form
    76,555.64/114,839.22 = 20,395.52/x
  3. Step 3: Cross multiply
    76,555.64x = 114,839.22 × 20,395.52
  4. Step 4: Simplify right side
    76,555.64x = 2,342,205,608.29
  5. Step 5: Solve for x
    x = 2,342,205,608.29/76,555.64
  6. Step 6: Final answer
    x = 30,594.81

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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.