Home / 79,439.90-109,622.70-43,624.13

Finding the Fourth Proportional to 79,439.90, 109,622.70 and 43,624.13

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Solution

The fourth proportional to 79,439.90, 109,622.70 and 43,624.13 is: 60,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,439.90 : 109,622.70 = 43,624.13 : x
  2. Step 2: Convert to fraction form
    79,439.90/109,622.70 = 43,624.13/x
  3. Step 3: Cross multiply
    79,439.90x = 109,622.70 × 43,624.13
  4. Step 4: Simplify right side
    79,439.90x = 4,782,194,367.64
  5. Step 5: Solve for x
    x = 4,782,194,367.64/79,439.90
  6. Step 6: Final answer
    x = 60,198.90

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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.