Home / 90,263.80-135,419.20-34,104.34

Finding the Fourth Proportional to 90,263.80, 135,419.20 and 34,104.34

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Solution

The fourth proportional to 90,263.80, 135,419.20 and 34,104.34 is: 51,165.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,263.80 : 135,419.20 = 34,104.34 : x
  2. Step 2: Convert to fraction form
    90,263.80/135,419.20 = 34,104.34/x
  3. Step 3: Cross multiply
    90,263.80x = 135,419.20 × 34,104.34
  4. Step 4: Simplify right side
    90,263.80x = 4,618,382,439.33
  5. Step 5: Solve for x
    x = 4,618,382,439.33/90,263.80
  6. Step 6: Final answer
    x = 51,165.39

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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.