Home / 76,520.14-114,780.06-20,360.25

Finding the Fourth Proportional to 76,520.14, 114,780.06 and 20,360.25

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Solution

The fourth proportional to 76,520.14, 114,780.06 and 20,360.25 is: 30,540.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,520.14 : 114,780.06 = 20,360.25 : x
  2. Step 2: Convert to fraction form
    76,520.14/114,780.06 = 20,360.25/x
  3. Step 3: Cross multiply
    76,520.14x = 114,780.06 × 20,360.25
  4. Step 4: Simplify right side
    76,520.14x = 2,336,950,612.47
  5. Step 5: Solve for x
    x = 2,336,950,612.47/76,520.14
  6. Step 6: Final answer
    x = 30,540.33

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1.5x scale

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.