Home / 85,021.14-127,438.20-35,073.96

Finding the Fourth Proportional to 85,021.14, 127,438.20 and 35,073.96

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Solution

The fourth proportional to 85,021.14, 127,438.20 and 35,073.96 is: 52,572.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,021.14 : 127,438.20 = 35,073.96 : x
  2. Step 2: Convert to fraction form
    85,021.14/127,438.20 = 35,073.96/x
  3. Step 3: Cross multiply
    85,021.14x = 127,438.20 × 35,073.96
  4. Step 4: Simplify right side
    85,021.14x = 4,469,762,329.27
  5. Step 5: Solve for x
    x = 4,469,762,329.27/85,021.14
  6. Step 6: Final answer
    x = 52,572.36

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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.