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Finding the Fourth Proportional to 50,159.80, 69,163.80 and 31,986.28

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Solution

The fourth proportional to 50,159.80, 69,163.80 and 31,986.28 is: 44,104.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,159.80 : 69,163.80 = 31,986.28 : x
  2. Step 2: Convert to fraction form
    50,159.80/69,163.80 = 31,986.28/x
  3. Step 3: Cross multiply
    50,159.80x = 69,163.80 × 31,986.28
  4. Step 4: Simplify right side
    50,159.80x = 2,212,292,672.66
  5. Step 5: Solve for x
    x = 2,212,292,672.66/50,159.80
  6. Step 6: Final answer
    x = 44,104.89

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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.