Home / 79,543.76-109,772.55-43,247.66

Finding the Fourth Proportional to 79,543.76, 109,772.55 and 43,247.66

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Solution

The fourth proportional to 79,543.76, 109,772.55 and 43,247.66 is: 59,682.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,543.76 : 109,772.55 = 43,247.66 : x
  2. Step 2: Convert to fraction form
    79,543.76/109,772.55 = 43,247.66/x
  3. Step 3: Cross multiply
    79,543.76x = 109,772.55 × 43,247.66
  4. Step 4: Simplify right side
    79,543.76x = 4,747,405,370.87
  5. Step 5: Solve for x
    x = 4,747,405,370.87/79,543.76
  6. Step 6: Final answer
    x = 59,682.94

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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.