Home / 90,134.64-124,385.07-49,850.10

Finding the Fourth Proportional to 90,134.64, 124,385.07 and 49,850.10

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Solution

The fourth proportional to 90,134.64, 124,385.07 and 49,850.10 is: 68,792.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,134.64 : 124,385.07 = 49,850.10 : x
  2. Step 2: Convert to fraction form
    90,134.64/124,385.07 = 49,850.10/x
  3. Step 3: Cross multiply
    90,134.64x = 124,385.07 × 49,850.10
  4. Step 4: Simplify right side
    90,134.64x = 6,200,607,556.08
  5. Step 5: Solve for x
    x = 6,200,607,556.08/90,134.64
  6. Step 6: Final answer
    x = 68,792.73

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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.