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Finding the Fourth Proportional to 71,700.20, 107,453.10 and 47,940.20

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Solution

The fourth proportional to 71,700.20, 107,453.10 and 47,940.20 is: 71,845.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,700.20 : 107,453.10 = 47,940.20 : x
  2. Step 2: Convert to fraction form
    71,700.20/107,453.10 = 47,940.20/x
  3. Step 3: Cross multiply
    71,700.20x = 107,453.10 × 47,940.20
  4. Step 4: Simplify right side
    71,700.20x = 5,151,323,104.62
  5. Step 5: Solve for x
    x = 5,151,323,104.62/71,700.20
  6. Step 6: Final answer
    x = 71,845.31

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1.5x scale

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.