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Finding the Fourth Proportional to 79,103.60, 109,163.02 and 43,293.60

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Solution

The fourth proportional to 79,103.60, 109,163.02 and 43,293.60 is: 59,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,103.60 : 109,163.02 = 43,293.60 : x
  2. Step 2: Convert to fraction form
    79,103.60/109,163.02 = 43,293.60/x
  3. Step 3: Cross multiply
    79,103.60x = 109,163.02 × 43,293.60
  4. Step 4: Simplify right side
    79,103.60x = 4,726,060,122.67
  5. Step 5: Solve for x
    x = 4,726,060,122.67/79,103.60
  6. Step 6: Final answer
    x = 59,745.20

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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.