Home / 90,103.26-124,351.56-49,820.07

Finding the Fourth Proportional to 90,103.26, 124,351.56 and 49,820.07

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Solution

The fourth proportional to 90,103.26, 124,351.56 and 49,820.07 is: 68,756.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,103.26 : 124,351.56 = 49,820.07 : x
  2. Step 2: Convert to fraction form
    90,103.26/124,351.56 = 49,820.07/x
  3. Step 3: Cross multiply
    90,103.26x = 124,351.56 × 49,820.07
  4. Step 4: Simplify right side
    90,103.26x = 6,195,203,423.81
  5. Step 5: Solve for x
    x = 6,195,203,423.81/90,103.26
  6. Step 6: Final answer
    x = 68,756.71

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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.