Home / 90,108.08-135,284.72-50,692.96

Finding the Fourth Proportional to 90,108.08, 135,284.72 and 50,692.96

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Solution

The fourth proportional to 90,108.08, 135,284.72 and 50,692.96 is: 76,108.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,108.08 : 135,284.72 = 50,692.96 : x
  2. Step 2: Convert to fraction form
    90,108.08/135,284.72 = 50,692.96/x
  3. Step 3: Cross multiply
    90,108.08x = 135,284.72 × 50,692.96
  4. Step 4: Simplify right side
    90,108.08x = 6,857,982,899.57
  5. Step 5: Solve for x
    x = 6,857,982,899.57/90,108.08
  6. Step 6: Final answer
    x = 76,108.41

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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.