Home / 86,128.92-118,857.96-48,403.44

Finding the Fourth Proportional to 86,128.92, 118,857.96 and 48,403.44

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Solution

The fourth proportional to 86,128.92, 118,857.96 and 48,403.44 is: 66,796.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,128.92 : 118,857.96 = 48,403.44 : x
  2. Step 2: Convert to fraction form
    86,128.92/118,857.96 = 48,403.44/x
  3. Step 3: Cross multiply
    86,128.92x = 118,857.96 × 48,403.44
  4. Step 4: Simplify right side
    86,128.92x = 5,753,134,135.38
  5. Step 5: Solve for x
    x = 5,753,134,135.38/86,128.92
  6. Step 6: Final answer
    x = 66,796.78

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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.