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Finding the Fourth Proportional to 91,758.71, 126,626.81 and 50,929.09

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Solution

The fourth proportional to 91,758.71, 126,626.81 and 50,929.09 is: 70,282.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,758.71 : 126,626.81 = 50,929.09 : x
  2. Step 2: Convert to fraction form
    91,758.71/126,626.81 = 50,929.09/x
  3. Step 3: Cross multiply
    91,758.71x = 126,626.81 × 50,929.09
  4. Step 4: Simplify right side
    91,758.71x = 6,448,987,759.01
  5. Step 5: Solve for x
    x = 6,448,987,759.01/91,758.71
  6. Step 6: Final answer
    x = 70,282.03

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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.