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Finding the Fourth Proportional to 50,668.88, 69,927.28 and 28,012.30

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Solution

The fourth proportional to 50,668.88, 69,927.28 and 28,012.30 is: 38,659.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,668.88 : 69,927.28 = 28,012.30 : x
  2. Step 2: Convert to fraction form
    50,668.88/69,927.28 = 28,012.30/x
  3. Step 3: Cross multiply
    50,668.88x = 69,927.28 × 28,012.30
  4. Step 4: Simplify right side
    50,668.88x = 1,958,823,700.70
  5. Step 5: Solve for x
    x = 1,958,823,700.70/50,668.88
  6. Step 6: Final answer
    x = 38,659.31

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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.