Home / 79,631.20-109,892.48-43,820.88

Finding the Fourth Proportional to 79,631.20, 109,892.48 and 43,820.88

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Solution

The fourth proportional to 79,631.20, 109,892.48 and 43,820.88 is: 60,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,631.20 : 109,892.48 = 43,820.88 : x
  2. Step 2: Convert to fraction form
    79,631.20/109,892.48 = 43,820.88/x
  3. Step 3: Cross multiply
    79,631.20x = 109,892.48 × 43,820.88
  4. Step 4: Simplify right side
    79,631.20x = 4,815,585,178.98
  5. Step 5: Solve for x
    x = 4,815,585,178.98/79,631.20
  6. Step 6: Final answer
    x = 60,473.60

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1.5x scale

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.