Home / 79,431.64-109,617.60-43,134.64

Finding the Fourth Proportional to 79,431.64, 109,617.60 and 43,134.64

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Solution

The fourth proportional to 79,431.64, 109,617.60 and 43,134.64 is: 59,526.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,431.64 : 109,617.60 = 43,134.64 : x
  2. Step 2: Convert to fraction form
    79,431.64/109,617.60 = 43,134.64/x
  3. Step 3: Cross multiply
    79,431.64x = 109,617.60 × 43,134.64
  4. Step 4: Simplify right side
    79,431.64x = 4,728,315,713.66
  5. Step 5: Solve for x
    x = 4,728,315,713.66/79,431.64
  6. Step 6: Final answer
    x = 59,526.85

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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.