Home / 80,662.14-111,297.51-47,121.66

Finding the Fourth Proportional to 80,662.14, 111,297.51 and 47,121.66

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Solution

The fourth proportional to 80,662.14, 111,297.51 and 47,121.66 is: 65,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,662.14 : 111,297.51 = 47,121.66 : x
  2. Step 2: Convert to fraction form
    80,662.14/111,297.51 = 47,121.66/x
  3. Step 3: Cross multiply
    80,662.14x = 111,297.51 × 47,121.66
  4. Step 4: Simplify right side
    80,662.14x = 5,244,523,425.07
  5. Step 5: Solve for x
    x = 5,244,523,425.07/80,662.14
  6. Step 6: Final answer
    x = 65,018.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.