Home / 52,716.20-79,074.30-47,877.80

Finding the Fourth Proportional to 52,716.20, 79,074.30 and 47,877.80

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Solution

The fourth proportional to 52,716.20, 79,074.30 and 47,877.80 is: 71,816.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,716.20 : 79,074.30 = 47,877.80 : x
  2. Step 2: Convert to fraction form
    52,716.20/79,074.30 = 47,877.80/x
  3. Step 3: Cross multiply
    52,716.20x = 79,074.30 × 47,877.80
  4. Step 4: Simplify right side
    52,716.20x = 3,785,903,520.54
  5. Step 5: Solve for x
    x = 3,785,903,520.54/52,716.20
  6. Step 6: Final answer
    x = 71,816.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.