Home / 76,767.62-115,135.56-20,594.41

Finding the Fourth Proportional to 76,767.62, 115,135.56 and 20,594.41

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Solution

The fourth proportional to 76,767.62, 115,135.56 and 20,594.41 is: 30,887.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,767.62 : 115,135.56 = 20,594.41 : x
  2. Step 2: Convert to fraction form
    76,767.62/115,135.56 = 20,594.41/x
  3. Step 3: Cross multiply
    76,767.62x = 115,135.56 × 20,594.41
  4. Step 4: Simplify right side
    76,767.62x = 2,371,148,928.22
  5. Step 5: Solve for x
    x = 2,371,148,928.22/76,767.62
  6. Step 6: Final answer
    x = 30,887.36

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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.