Home / 81,250.35-121,856-33,866.11

Finding the Fourth Proportional to 81,250.35, 121,856 and 33,866.11

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Solution

The fourth proportional to 81,250.35, 121,856 and 33,866.11 is: 50,791.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,250.35 : 121,856 = 33,866.11 : x
  2. Step 2: Convert to fraction form
    81,250.35/121,856 = 33,866.11/x
  3. Step 3: Cross multiply
    81,250.35x = 121,856 × 33,866.11
  4. Step 4: Simplify right side
    81,250.35x = 4,126,788,090.88
  5. Step 5: Solve for x
    x = 4,126,788,090.88/81,250.35
  6. Step 6: Final answer
    x = 50,791.02

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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.