Home / 81,659.64-112,662.18-45,844.68

Finding the Fourth Proportional to 81,659.64, 112,662.18 and 45,844.68

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Solution

The fourth proportional to 81,659.64, 112,662.18 and 45,844.68 is: 63,249.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,659.64 : 112,662.18 = 45,844.68 : x
  2. Step 2: Convert to fraction form
    81,659.64/112,662.18 = 45,844.68/x
  3. Step 3: Cross multiply
    81,659.64x = 112,662.18 × 45,844.68
  4. Step 4: Simplify right side
    81,659.64x = 5,164,961,590.20
  5. Step 5: Solve for x
    x = 5,164,961,590.20/81,659.64
  6. Step 6: Final answer
    x = 63,249.87

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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.