Home / 90,596.12-135,904.98-43,815.38

Finding the Fourth Proportional to 90,596.12, 135,904.98 and 43,815.38

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Solution

The fourth proportional to 90,596.12, 135,904.98 and 43,815.38 is: 65,728.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,596.12 : 135,904.98 = 43,815.38 : x
  2. Step 2: Convert to fraction form
    90,596.12/135,904.98 = 43,815.38/x
  3. Step 3: Cross multiply
    90,596.12x = 135,904.98 × 43,815.38
  4. Step 4: Simplify right side
    90,596.12x = 5,954,728,342.59
  5. Step 5: Solve for x
    x = 5,954,728,342.59/90,596.12
  6. Step 6: Final answer
    x = 65,728.29

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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.