Home / 43,079.64-64,629.78-20,867.05

Finding the Fourth Proportional to 43,079.64, 64,629.78 and 20,867.05

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Solution

The fourth proportional to 43,079.64, 64,629.78 and 20,867.05 is: 31,305.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,079.64 : 64,629.78 = 20,867.05 : x
  2. Step 2: Convert to fraction form
    43,079.64/64,629.78 = 20,867.05/x
  3. Step 3: Cross multiply
    43,079.64x = 64,629.78 × 20,867.05
  4. Step 4: Simplify right side
    43,079.64x = 1,348,632,850.75
  5. Step 5: Solve for x
    x = 1,348,632,850.75/43,079.64
  6. Step 6: Final answer
    x = 31,305.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.