Home / 90,708.48-125,179.20-49,874.33

Finding the Fourth Proportional to 90,708.48, 125,179.20 and 49,874.33

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Solution

The fourth proportional to 90,708.48, 125,179.20 and 49,874.33 is: 68,827.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,708.48 : 125,179.20 = 49,874.33 : x
  2. Step 2: Convert to fraction form
    90,708.48/125,179.20 = 49,874.33/x
  3. Step 3: Cross multiply
    90,708.48x = 125,179.20 × 49,874.33
  4. Step 4: Simplify right side
    90,708.48x = 6,243,228,480.56
  5. Step 5: Solve for x
    x = 6,243,228,480.56/90,708.48
  6. Step 6: Final answer
    x = 68,827.40

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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.