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Finding the Fourth Proportional to 50,346, 69,480.36 and 27,991.44

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Solution

The fourth proportional to 50,346, 69,480.36 and 27,991.44 is: 38,629.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,346 : 69,480.36 = 27,991.44 : x
  2. Step 2: Convert to fraction form
    50,346/69,480.36 = 27,991.44/x
  3. Step 3: Cross multiply
    50,346x = 69,480.36 × 27,991.44
  4. Step 4: Simplify right side
    50,346x = 1,944,855,328.12
  5. Step 5: Solve for x
    x = 1,944,855,328.12/50,346
  6. Step 6: Final answer
    x = 38,629.79

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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.