Home / 89,981.30-134,958.07-30,010.82

Finding the Fourth Proportional to 89,981.30, 134,958.07 and 30,010.82

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Solution

The fourth proportional to 89,981.30, 134,958.07 and 30,010.82 is: 45,011.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,981.30 : 134,958.07 = 30,010.82 : x
  2. Step 2: Convert to fraction form
    89,981.30/134,958.07 = 30,010.82/x
  3. Step 3: Cross multiply
    89,981.30x = 134,958.07 × 30,010.82
  4. Step 4: Simplify right side
    89,981.30x = 4,050,202,608.69
  5. Step 5: Solve for x
    x = 4,050,202,608.69/89,981.30
  6. Step 6: Final answer
    x = 45,011.61

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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.