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Finding the Fourth Proportional to 50,351, 69,484.38 and 27,690.40

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Solution

The fourth proportional to 50,351, 69,484.38 and 27,690.40 is: 38,212.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,351 : 69,484.38 = 27,690.40 : x
  2. Step 2: Convert to fraction form
    50,351/69,484.38 = 27,690.40/x
  3. Step 3: Cross multiply
    50,351x = 69,484.38 × 27,690.40
  4. Step 4: Simplify right side
    50,351x = 1,924,050,275.95
  5. Step 5: Solve for x
    x = 1,924,050,275.95/50,351
  6. Step 6: Final answer
    x = 38,212.75

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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.