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Finding the Fourth Proportional to 40,352.91, 60,539.09 and 12,650.91

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Solution

The fourth proportional to 40,352.91, 60,539.09 and 12,650.91 is: 18,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,352.91 : 60,539.09 = 12,650.91 : x
  2. Step 2: Convert to fraction form
    40,352.91/60,539.09 = 12,650.91/x
  3. Step 3: Cross multiply
    40,352.91x = 60,539.09 × 12,650.91
  4. Step 4: Simplify right side
    40,352.91x = 765,874,288.80
  5. Step 5: Solve for x
    x = 765,874,288.80/40,352.91
  6. Step 6: Final answer
    x = 18,979.41

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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.