Home / 98,582.88-135,993.84-66,740.64

Finding the Fourth Proportional to 98,582.88, 135,993.84 and 66,740.64

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Solution

The fourth proportional to 98,582.88, 135,993.84 and 66,740.64 is: 92,067.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,582.88 : 135,993.84 = 66,740.64 : x
  2. Step 2: Convert to fraction form
    98,582.88/135,993.84 = 66,740.64/x
  3. Step 3: Cross multiply
    98,582.88x = 135,993.84 × 66,740.64
  4. Step 4: Simplify right side
    98,582.88x = 9,076,315,917.66
  5. Step 5: Solve for x
    x = 9,076,315,917.66/98,582.88
  6. Step 6: Final answer
    x = 92,067.87

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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.