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Finding the Fourth Proportional to 50,687.88, 69,943.16 and 28,023.81

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Solution

The fourth proportional to 50,687.88, 69,943.16 and 28,023.81 is: 38,669.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,687.88 : 69,943.16 = 28,023.81 : x
  2. Step 2: Convert to fraction form
    50,687.88/69,943.16 = 28,023.81/x
  3. Step 3: Cross multiply
    50,687.88x = 69,943.16 × 28,023.81
  4. Step 4: Simplify right side
    50,687.88x = 1,960,073,826.64
  5. Step 5: Solve for x
    x = 1,960,073,826.64/50,687.88
  6. Step 6: Final answer
    x = 38,669.48

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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.