Home / 79,591.45-109,834.40-43,780.70

Finding the Fourth Proportional to 79,591.45, 109,834.40 and 43,780.70

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Solution

The fourth proportional to 79,591.45, 109,834.40 and 43,780.70 is: 60,416.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,591.45 : 109,834.40 = 43,780.70 : x
  2. Step 2: Convert to fraction form
    79,591.45/109,834.40 = 43,780.70/x
  3. Step 3: Cross multiply
    79,591.45x = 109,834.40 × 43,780.70
  4. Step 4: Simplify right side
    79,591.45x = 4,808,626,148.00
  5. Step 5: Solve for x
    x = 4,808,626,148.00/79,591.45
  6. Step 6: Final answer
    x = 60,416.37

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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.