Home / 90,814.82-136,234.13-30,004.89

Finding the Fourth Proportional to 90,814.82, 136,234.13 and 30,004.89

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Solution

The fourth proportional to 90,814.82, 136,234.13 and 30,004.89 is: 45,011.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,814.82 : 136,234.13 = 30,004.89 : x
  2. Step 2: Convert to fraction form
    90,814.82/136,234.13 = 30,004.89/x
  3. Step 3: Cross multiply
    90,814.82x = 136,234.13 × 30,004.89
  4. Step 4: Simplify right side
    90,814.82x = 4,087,690,084.90
  5. Step 5: Solve for x
    x = 4,087,690,084.90/90,814.82
  6. Step 6: Final answer
    x = 45,011.27

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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.