Home / 90,021.67-135,052.61-33,862.25

Finding the Fourth Proportional to 90,021.67, 135,052.61 and 33,862.25

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Solution

The fourth proportional to 90,021.67, 135,052.61 and 33,862.25 is: 50,800.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,021.67 : 135,052.61 = 33,862.25 : x
  2. Step 2: Convert to fraction form
    90,021.67/135,052.61 = 33,862.25/x
  3. Step 3: Cross multiply
    90,021.67x = 135,052.61 × 33,862.25
  4. Step 4: Simplify right side
    90,021.67x = 4,573,184,651.62
  5. Step 5: Solve for x
    x = 4,573,184,651.62/90,021.67
  6. Step 6: Final answer
    x = 50,800.93

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1.5x scale

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.