Home / 90,999.20-136,466.40-41,103.20

Finding the Fourth Proportional to 90,999.20, 136,466.40 and 41,103.20

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Solution

The fourth proportional to 90,999.20, 136,466.40 and 41,103.20 is: 61,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,999.20 : 136,466.40 = 41,103.20 : x
  2. Step 2: Convert to fraction form
    90,999.20/136,466.40 = 41,103.20/x
  3. Step 3: Cross multiply
    90,999.20x = 136,466.40 × 41,103.20
  4. Step 4: Simplify right side
    90,999.20x = 5,609,205,732.48
  5. Step 5: Solve for x
    x = 5,609,205,732.48/90,999.20
  6. Step 6: Final answer
    x = 61,640.17

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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.