Home / 90,166.43-124,419.51-49,874.60

Finding the Fourth Proportional to 90,166.43, 124,419.51 and 49,874.60

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Solution

The fourth proportional to 90,166.43, 124,419.51 and 49,874.60 is: 68,821.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,166.43 : 124,419.51 = 49,874.60 : x
  2. Step 2: Convert to fraction form
    90,166.43/124,419.51 = 49,874.60/x
  3. Step 3: Cross multiply
    90,166.43x = 124,419.51 × 49,874.60
  4. Step 4: Simplify right side
    90,166.43x = 6,205,373,604.49
  5. Step 5: Solve for x
    x = 6,205,373,604.49/90,166.43
  6. Step 6: Final answer
    x = 68,821.33

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1.5x scale

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.