Home / 79,261.48-109,380.18-43,453.72

Finding the Fourth Proportional to 79,261.48, 109,380.18 and 43,453.72

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Solution

The fourth proportional to 79,261.48, 109,380.18 and 43,453.72 is: 59,965.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261.48 : 109,380.18 = 43,453.72 : x
  2. Step 2: Convert to fraction form
    79,261.48/109,380.18 = 43,453.72/x
  3. Step 3: Cross multiply
    79,261.48x = 109,380.18 × 43,453.72
  4. Step 4: Simplify right side
    79,261.48x = 4,752,975,715.27
  5. Step 5: Solve for x
    x = 4,752,975,715.27/79,261.48
  6. Step 6: Final answer
    x = 59,965.77

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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.