Home / 71,712.27-107,568.36-21,792.18

Finding the Fourth Proportional to 71,712.27, 107,568.36 and 21,792.18

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Solution

The fourth proportional to 71,712.27, 107,568.36 and 21,792.18 is: 32,688.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,712.27 : 107,568.36 = 21,792.18 : x
  2. Step 2: Convert to fraction form
    71,712.27/107,568.36 = 21,792.18/x
  3. Step 3: Cross multiply
    71,712.27x = 107,568.36 × 21,792.18
  4. Step 4: Simplify right side
    71,712.27x = 2,344,149,063.42
  5. Step 5: Solve for x
    x = 2,344,149,063.42/71,712.27
  6. Step 6: Final answer
    x = 32,688.26

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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.