Home / 54,154.71-81,176.70-20,861.73

Finding the Fourth Proportional to 54,154.71, 81,176.70 and 20,861.73

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Solution

The fourth proportional to 54,154.71, 81,176.70 and 20,861.73 is: 31,271.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,154.71 : 81,176.70 = 20,861.73 : x
  2. Step 2: Convert to fraction form
    54,154.71/81,176.70 = 20,861.73/x
  3. Step 3: Cross multiply
    54,154.71x = 81,176.70 × 20,861.73
  4. Step 4: Simplify right side
    54,154.71x = 1,693,486,397.69
  5. Step 5: Solve for x
    x = 1,693,486,397.69/54,154.71
  6. Step 6: Final answer
    x = 31,271.27

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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.