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Finding the Fourth Proportional to 50,681.56, 69,938.49 and 28,019.11

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Solution

The fourth proportional to 50,681.56, 69,938.49 and 28,019.11 is: 38,665.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,681.56 : 69,938.49 = 28,019.11 : x
  2. Step 2: Convert to fraction form
    50,681.56/69,938.49 = 28,019.11/x
  3. Step 3: Cross multiply
    50,681.56x = 69,938.49 × 28,019.11
  4. Step 4: Simplify right side
    50,681.56x = 1,959,614,244.54
  5. Step 5: Solve for x
    x = 1,959,614,244.54/50,681.56
  6. Step 6: Final answer
    x = 38,665.23

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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.