Home / 90,708.73-125,179.54-49,874.58

Finding the Fourth Proportional to 90,708.73, 125,179.54 and 49,874.58

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Solution

The fourth proportional to 90,708.73, 125,179.54 and 49,874.58 is: 68,827.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,708.73 : 125,179.54 = 49,874.58 : x
  2. Step 2: Convert to fraction form
    90,708.73/125,179.54 = 49,874.58/x
  3. Step 3: Cross multiply
    90,708.73x = 125,179.54 × 49,874.58
  4. Step 4: Simplify right side
    90,708.73x = 6,243,276,857.41
  5. Step 5: Solve for x
    x = 6,243,276,857.41/90,708.73
  6. Step 6: Final answer
    x = 68,827.74

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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.