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Finding the Fourth Proportional to 40,521.35, 60,782.04 and 10,939.16

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Solution

The fourth proportional to 40,521.35, 60,782.04 and 10,939.16 is: 16,408.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,521.35 : 60,782.04 = 10,939.16 : x
  2. Step 2: Convert to fraction form
    40,521.35/60,782.04 = 10,939.16/x
  3. Step 3: Cross multiply
    40,521.35x = 60,782.04 × 10,939.16
  4. Step 4: Simplify right side
    40,521.35x = 664,904,460.69
  5. Step 5: Solve for x
    x = 664,904,460.69/40,521.35
  6. Step 6: Final answer
    x = 16,408.74

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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.