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Finding the Fourth Proportional to 50,579, 69,799.06 and 28,223

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Solution

The fourth proportional to 50,579, 69,799.06 and 28,223 is: 38,947.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,579 : 69,799.06 = 28,223 : x
  2. Step 2: Convert to fraction form
    50,579/69,799.06 = 28,223/x
  3. Step 3: Cross multiply
    50,579x = 69,799.06 × 28,223
  4. Step 4: Simplify right side
    50,579x = 1,969,938,870.38
  5. Step 5: Solve for x
    x = 1,969,938,870.38/50,579
  6. Step 6: Final answer
    x = 38,947.76

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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.