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Finding the Fourth Proportional to 50,642.32, 69,880.44 and 27,979.96

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Solution

The fourth proportional to 50,642.32, 69,880.44 and 27,979.96 is: 38,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,642.32 : 69,880.44 = 27,979.96 : x
  2. Step 2: Convert to fraction form
    50,642.32/69,880.44 = 27,979.96/x
  3. Step 3: Cross multiply
    50,642.32x = 69,880.44 × 27,979.96
  4. Step 4: Simplify right side
    50,642.32x = 1,955,251,915.98
  5. Step 5: Solve for x
    x = 1,955,251,915.98/50,642.32
  6. Step 6: Final answer
    x = 38,609.05

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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.