Home / 80,085.90-110,515.07-43,786.68

Finding the Fourth Proportional to 80,085.90, 110,515.07 and 43,786.68

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Solution

The fourth proportional to 80,085.90, 110,515.07 and 43,786.68 is: 60,423.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,085.90 : 110,515.07 = 43,786.68 : x
  2. Step 2: Convert to fraction form
    80,085.90/110,515.07 = 43,786.68/x
  3. Step 3: Cross multiply
    80,085.90x = 110,515.07 × 43,786.68
  4. Step 4: Simplify right side
    80,085.90x = 4,839,088,005.27
  5. Step 5: Solve for x
    x = 4,839,088,005.27/80,085.90
  6. Step 6: Final answer
    x = 60,423.72

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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.