Home / 41,420.40-62,179.20-41,128.80

Finding the Fourth Proportional to 41,420.40, 62,179.20 and 41,128.80

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Solution

The fourth proportional to 41,420.40, 62,179.20 and 41,128.80 is: 61,741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,420.40 : 62,179.20 = 41,128.80 : x
  2. Step 2: Convert to fraction form
    41,420.40/62,179.20 = 41,128.80/x
  3. Step 3: Cross multiply
    41,420.40x = 62,179.20 × 41,128.80
  4. Step 4: Simplify right side
    41,420.40x = 2,557,355,880.96
  5. Step 5: Solve for x
    x = 2,557,355,880.96/41,420.40
  6. Step 6: Final answer
    x = 61,741.46

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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.