Home / 90,276.62-135,409.53-31,110.98

Finding the Fourth Proportional to 90,276.62, 135,409.53 and 31,110.98

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Solution

The fourth proportional to 90,276.62, 135,409.53 and 31,110.98 is: 46,664.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,276.62 : 135,409.53 = 31,110.98 : x
  2. Step 2: Convert to fraction form
    90,276.62/135,409.53 = 31,110.98/x
  3. Step 3: Cross multiply
    90,276.62x = 135,409.53 × 31,110.98
  4. Step 4: Simplify right side
    90,276.62x = 4,212,723,179.64
  5. Step 5: Solve for x
    x = 4,212,723,179.64/90,276.62
  6. Step 6: Final answer
    x = 46,664.61

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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.