Home / 50,721.96-69,988.14-31,884.60

Finding the Fourth Proportional to 50,721.96, 69,988.14 and 31,884.60

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Solution

The fourth proportional to 50,721.96, 69,988.14 and 31,884.60 is: 43,995.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,721.96 : 69,988.14 = 31,884.60 : x
  2. Step 2: Convert to fraction form
    50,721.96/69,988.14 = 31,884.60/x
  3. Step 3: Cross multiply
    50,721.96x = 69,988.14 × 31,884.60
  4. Step 4: Simplify right side
    50,721.96x = 2,231,543,848.64
  5. Step 5: Solve for x
    x = 2,231,543,848.64/50,721.96
  6. Step 6: Final answer
    x = 43,995.62

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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.