Home / 81,111.78-121,667.96-24,951.52

Finding the Fourth Proportional to 81,111.78, 121,667.96 and 24,951.52

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Solution

The fourth proportional to 81,111.78, 121,667.96 and 24,951.52 is: 37,427.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,111.78 : 121,667.96 = 24,951.52 : x
  2. Step 2: Convert to fraction form
    81,111.78/121,667.96 = 24,951.52/x
  3. Step 3: Cross multiply
    81,111.78x = 121,667.96 × 24,951.52
  4. Step 4: Simplify right side
    81,111.78x = 3,035,800,537.30
  5. Step 5: Solve for x
    x = 3,035,800,537.30/81,111.78
  6. Step 6: Final answer
    x = 37,427.37

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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.