Home / 79,555.45-109,784.41-43,255.75

Finding the Fourth Proportional to 79,555.45, 109,784.41 and 43,255.75

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Solution

The fourth proportional to 79,555.45, 109,784.41 and 43,255.75 is: 59,691.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,555.45 : 109,784.41 = 43,255.75 : x
  2. Step 2: Convert to fraction form
    79,555.45/109,784.41 = 43,255.75/x
  3. Step 3: Cross multiply
    79,555.45x = 109,784.41 × 43,255.75
  4. Step 4: Simplify right side
    79,555.45x = 4,748,806,992.86
  5. Step 5: Solve for x
    x = 4,748,806,992.86/79,555.45
  6. Step 6: Final answer
    x = 59,691.79

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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.