Home / 57,371.38-79,172.36-31,877.64

Finding the Fourth Proportional to 57,371.38, 79,172.36 and 31,877.64

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Solution

The fourth proportional to 57,371.38, 79,172.36 and 31,877.64 is: 43,991.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,371.38 : 79,172.36 = 31,877.64 : x
  2. Step 2: Convert to fraction form
    57,371.38/79,172.36 = 31,877.64/x
  3. Step 3: Cross multiply
    57,371.38x = 79,172.36 × 31,877.64
  4. Step 4: Simplify right side
    57,371.38x = 2,523,827,990.03
  5. Step 5: Solve for x
    x = 2,523,827,990.03/57,371.38
  6. Step 6: Final answer
    x = 43,991.06

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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.