Home / 40,107.45-60,161.03-13,812.12

Finding the Fourth Proportional to 40,107.45, 60,161.03 and 13,812.12

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Solution

The fourth proportional to 40,107.45, 60,161.03 and 13,812.12 is: 20,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,107.45 : 60,161.03 = 13,812.12 : x
  2. Step 2: Convert to fraction form
    40,107.45/60,161.03 = 13,812.12/x
  3. Step 3: Cross multiply
    40,107.45x = 60,161.03 × 13,812.12
  4. Step 4: Simplify right side
    40,107.45x = 830,951,348.42
  5. Step 5: Solve for x
    x = 830,951,348.42/40,107.45
  6. Step 6: Final answer
    x = 20,718.13

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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.