Home / 79,631.64-109,892.16-43,820.64

Finding the Fourth Proportional to 79,631.64, 109,892.16 and 43,820.64

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Solution

The fourth proportional to 79,631.64, 109,892.16 and 43,820.64 is: 60,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,631.64 : 109,892.16 = 43,820.64 : x
  2. Step 2: Convert to fraction form
    79,631.64/109,892.16 = 43,820.64/x
  3. Step 3: Cross multiply
    79,631.64x = 109,892.16 × 43,820.64
  4. Step 4: Simplify right side
    79,631.64x = 4,815,544,782.18
  5. Step 5: Solve for x
    x = 4,815,544,782.18/79,631.64
  6. Step 6: Final answer
    x = 60,472.76

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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.