Home / 76,923.25-115,389.20-21,523.57

Finding the Fourth Proportional to 76,923.25, 115,389.20 and 21,523.57

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Solution

The fourth proportional to 76,923.25, 115,389.20 and 21,523.57 is: 32,286.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,923.25 : 115,389.20 = 21,523.57 : x
  2. Step 2: Convert to fraction form
    76,923.25/115,389.20 = 21,523.57/x
  3. Step 3: Cross multiply
    76,923.25x = 115,389.20 × 21,523.57
  4. Step 4: Simplify right side
    76,923.25x = 2,483,587,415.83
  5. Step 5: Solve for x
    x = 2,483,587,415.83/76,923.25
  6. Step 6: Final answer
    x = 32,286.56

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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.