Home / 79,132.08-109,203.64-43,321.52

Finding the Fourth Proportional to 79,132.08, 109,203.64 and 43,321.52

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Solution

The fourth proportional to 79,132.08, 109,203.64 and 43,321.52 is: 59,784.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,132.08 : 109,203.64 = 43,321.52 : x
  2. Step 2: Convert to fraction form
    79,132.08/109,203.64 = 43,321.52/x
  3. Step 3: Cross multiply
    79,132.08x = 109,203.64 × 43,321.52
  4. Step 4: Simplify right side
    79,132.08x = 4,730,867,674.33
  5. Step 5: Solve for x
    x = 4,730,867,674.33/79,132.08
  6. Step 6: Final answer
    x = 59,784.45

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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.