Home / 79,189.30-109,281.26-43,380.60

Finding the Fourth Proportional to 79,189.30, 109,281.26 and 43,380.60

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Solution

The fourth proportional to 79,189.30, 109,281.26 and 43,380.60 is: 59,865.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,189.30 : 109,281.26 = 43,380.60 : x
  2. Step 2: Convert to fraction form
    79,189.30/109,281.26 = 43,380.60/x
  3. Step 3: Cross multiply
    79,189.30x = 109,281.26 × 43,380.60
  4. Step 4: Simplify right side
    79,189.30x = 4,740,686,627.56
  5. Step 5: Solve for x
    x = 4,740,686,627.56/79,189.30
  6. Step 6: Final answer
    x = 59,865.24

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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.