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Finding the Fourth Proportional to 50,343, 69,473.58 and 27,987

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Solution

The fourth proportional to 50,343, 69,473.58 and 27,987 is: 38,622.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,343 : 69,473.58 = 27,987 : x
  2. Step 2: Convert to fraction form
    50,343/69,473.58 = 27,987/x
  3. Step 3: Cross multiply
    50,343x = 69,473.58 × 27,987
  4. Step 4: Simplify right side
    50,343x = 1,944,357,083.46
  5. Step 5: Solve for x
    x = 1,944,357,083.46/50,343
  6. Step 6: Final answer
    x = 38,622.19

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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.