Home / 90,668.70-125,120.31-50,381.42

Finding the Fourth Proportional to 90,668.70, 125,120.31 and 50,381.42

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Solution

The fourth proportional to 90,668.70, 125,120.31 and 50,381.42 is: 69,524.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,668.70 : 125,120.31 = 50,381.42 : x
  2. Step 2: Convert to fraction form
    90,668.70/125,120.31 = 50,381.42/x
  3. Step 3: Cross multiply
    90,668.70x = 125,120.31 × 50,381.42
  4. Step 4: Simplify right side
    90,668.70x = 6,303,738,888.64
  5. Step 5: Solve for x
    x = 6,303,738,888.64/90,668.70
  6. Step 6: Final answer
    x = 69,524.97

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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.