Home / 90,950.22-136,425.78-31,744.35

Finding the Fourth Proportional to 90,950.22, 136,425.78 and 31,744.35

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Solution

The fourth proportional to 90,950.22, 136,425.78 and 31,744.35 is: 47,616.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,950.22 : 136,425.78 = 31,744.35 : x
  2. Step 2: Convert to fraction form
    90,950.22/136,425.78 = 31,744.35/x
  3. Step 3: Cross multiply
    90,950.22x = 136,425.78 × 31,744.35
  4. Step 4: Simplify right side
    90,950.22x = 4,330,747,709.34
  5. Step 5: Solve for x
    x = 4,330,747,709.34/90,950.22
  6. Step 6: Final answer
    x = 47,616.68

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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.