Home / 90,121.29-124,364.91-49,833.67

Finding the Fourth Proportional to 90,121.29, 124,364.91 and 49,833.67

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Solution

The fourth proportional to 90,121.29, 124,364.91 and 49,833.67 is: 68,769.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,121.29 : 124,364.91 = 49,833.67 : x
  2. Step 2: Convert to fraction form
    90,121.29/124,364.91 = 49,833.67/x
  3. Step 3: Cross multiply
    90,121.29x = 124,364.91 × 49,833.67
  4. Step 4: Simplify right side
    90,121.29x = 6,197,560,195.43
  5. Step 5: Solve for x
    x = 6,197,560,195.43/90,121.29
  6. Step 6: Final answer
    x = 68,769.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.