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Finding the Fourth Proportional to 40,351.06, 60,516.78 and 12,649.06

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Solution

The fourth proportional to 40,351.06, 60,516.78 and 12,649.06 is: 18,970.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,351.06 : 60,516.78 = 12,649.06 : x
  2. Step 2: Convert to fraction form
    40,351.06/60,516.78 = 12,649.06/x
  3. Step 3: Cross multiply
    40,351.06x = 60,516.78 × 12,649.06
  4. Step 4: Simplify right side
    40,351.06x = 765,480,381.23
  5. Step 5: Solve for x
    x = 765,480,381.23/40,351.06
  6. Step 6: Final answer
    x = 18,970.51

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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.