Home / 57,927-79,939.26-31,431

Finding the Fourth Proportional to 57,927, 79,939.26 and 31,431

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Solution

The fourth proportional to 57,927, 79,939.26 and 31,431 is: 43,374.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,927 : 79,939.26 = 31,431 : x
  2. Step 2: Convert to fraction form
    57,927/79,939.26 = 31,431/x
  3. Step 3: Cross multiply
    57,927x = 79,939.26 × 31,431
  4. Step 4: Simplify right side
    57,927x = 2,512,570,881.06
  5. Step 5: Solve for x
    x = 2,512,570,881.06/57,927
  6. Step 6: Final answer
    x = 43,374.78

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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.