Home / 90,021.48-135,052.31-33,862.05

Finding the Fourth Proportional to 90,021.48, 135,052.31 and 33,862.05

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Solution

The fourth proportional to 90,021.48, 135,052.31 and 33,862.05 is: 50,800.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,021.48 : 135,052.31 = 33,862.05 : x
  2. Step 2: Convert to fraction form
    90,021.48/135,052.31 = 33,862.05/x
  3. Step 3: Cross multiply
    90,021.48x = 135,052.31 × 33,862.05
  4. Step 4: Simplify right side
    90,021.48x = 4,573,147,904.53
  5. Step 5: Solve for x
    x = 4,573,147,904.53/90,021.48
  6. Step 6: Final answer
    x = 50,800.63

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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.