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Finding the Fourth Proportional to 50,642.01, 69,884.51 and 27,980.64

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Solution

The fourth proportional to 50,642.01, 69,884.51 and 27,980.64 is: 38,612.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,642.01 : 69,884.51 = 27,980.64 : x
  2. Step 2: Convert to fraction form
    50,642.01/69,884.51 = 27,980.64/x
  3. Step 3: Cross multiply
    50,642.01x = 69,884.51 × 27,980.64
  4. Step 4: Simplify right side
    50,642.01x = 1,955,413,175.98
  5. Step 5: Solve for x
    x = 1,955,413,175.98/50,642.01
  6. Step 6: Final answer
    x = 38,612.47

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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.