Home / 61,512.81-92,236.40-31,857.09

Finding the Fourth Proportional to 61,512.81, 92,236.40 and 31,857.09

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Solution

The fourth proportional to 61,512.81, 92,236.40 and 31,857.09 is: 47,768.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,512.81 : 92,236.40 = 31,857.09 : x
  2. Step 2: Convert to fraction form
    61,512.81/92,236.40 = 31,857.09/x
  3. Step 3: Cross multiply
    61,512.81x = 92,236.40 × 31,857.09
  4. Step 4: Simplify right side
    61,512.81x = 2,938,383,296.08
  5. Step 5: Solve for x
    x = 2,938,383,296.08/61,512.81
  6. Step 6: Final answer
    x = 47,768.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.