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Finding the Fourth Proportional to 40,100.03, 60,160.29 and 12,020

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Solution

The fourth proportional to 40,100.03, 60,160.29 and 12,020 is: 18,033.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,100.03 : 60,160.29 = 12,020 : x
  2. Step 2: Convert to fraction form
    40,100.03/60,160.29 = 12,020/x
  3. Step 3: Cross multiply
    40,100.03x = 60,160.29 × 12,020
  4. Step 4: Simplify right side
    40,100.03x = 723,126,685.80
  5. Step 5: Solve for x
    x = 723,126,685.80/40,100.03
  6. Step 6: Final answer
    x = 18,033.07

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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.