Home / 90,999.40-136,434.30-34,817.80

Finding the Fourth Proportional to 90,999.40, 136,434.30 and 34,817.80

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Solution

The fourth proportional to 90,999.40, 136,434.30 and 34,817.80 is: 52,201.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,999.40 : 136,434.30 = 34,817.80 : x
  2. Step 2: Convert to fraction form
    90,999.40/136,434.30 = 34,817.80/x
  3. Step 3: Cross multiply
    90,999.40x = 136,434.30 × 34,817.80
  4. Step 4: Simplify right side
    90,999.40x = 4,750,342,170.54
  5. Step 5: Solve for x
    x = 4,750,342,170.54/90,999.40
  6. Step 6: Final answer
    x = 52,201.91

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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.