Home / 79,293.20-109,419.18-43,475.78

Finding the Fourth Proportional to 79,293.20, 109,419.18 and 43,475.78

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Solution

The fourth proportional to 79,293.20, 109,419.18 and 43,475.78 is: 59,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,293.20 : 109,419.18 = 43,475.78 : x
  2. Step 2: Convert to fraction form
    79,293.20/109,419.18 = 43,475.78/x
  3. Step 3: Cross multiply
    79,293.20x = 109,419.18 × 43,475.78
  4. Step 4: Simplify right side
    79,293.20x = 4,757,084,197.46
  5. Step 5: Solve for x
    x = 4,757,084,197.46/79,293.20
  6. Step 6: Final answer
    x = 59,993.60

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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.