Home / 90,936.32-136,403.94-34,763.36

Finding the Fourth Proportional to 90,936.32, 136,403.94 and 34,763.36

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Solution

The fourth proportional to 90,936.32, 136,403.94 and 34,763.36 is: 52,144.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,936.32 : 136,403.94 = 34,763.36 : x
  2. Step 2: Convert to fraction form
    90,936.32/136,403.94 = 34,763.36/x
  3. Step 3: Cross multiply
    90,936.32x = 136,403.94 × 34,763.36
  4. Step 4: Simplify right side
    90,936.32x = 4,741,859,271.64
  5. Step 5: Solve for x
    x = 4,741,859,271.64/90,936.32
  6. Step 6: Final answer
    x = 52,144.83

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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.