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Finding the Fourth Proportional to 90,992.64, 125,568.54 and 50,708.10

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Solution

The fourth proportional to 90,992.64, 125,568.54 and 50,708.10 is: 69,976.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,992.64 : 125,568.54 = 50,708.10 : x
  2. Step 2: Convert to fraction form
    90,992.64/125,568.54 = 50,708.10/x
  3. Step 3: Cross multiply
    90,992.64x = 125,568.54 × 50,708.10
  4. Step 4: Simplify right side
    90,992.64x = 6,367,342,083.17
  5. Step 5: Solve for x
    x = 6,367,342,083.17/90,992.64
  6. Step 6: Final answer
    x = 69,976.45

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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.