Home / 90,515.80-135,592.50-43,177

Finding the Fourth Proportional to 90,515.80, 135,592.50 and 43,177

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Solution

The fourth proportional to 90,515.80, 135,592.50 and 43,177 is: 64,679.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,515.80 : 135,592.50 = 43,177 : x
  2. Step 2: Convert to fraction form
    90,515.80/135,592.50 = 43,177/x
  3. Step 3: Cross multiply
    90,515.80x = 135,592.50 × 43,177
  4. Step 4: Simplify right side
    90,515.80x = 5,854,477,372.50
  5. Step 5: Solve for x
    x = 5,854,477,372.50/90,515.80
  6. Step 6: Final answer
    x = 64,679.07

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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.