Home / 54,157.71-81,213.33-18,622.61

Finding the Fourth Proportional to 54,157.71, 81,213.33 and 18,622.61

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Solution

The fourth proportional to 54,157.71, 81,213.33 and 18,622.61 is: 27,925.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,157.71 : 81,213.33 = 18,622.61 : x
  2. Step 2: Convert to fraction form
    54,157.71/81,213.33 = 18,622.61/x
  3. Step 3: Cross multiply
    54,157.71x = 81,213.33 × 18,622.61
  4. Step 4: Simplify right side
    54,157.71x = 1,512,404,139.71
  5. Step 5: Solve for x
    x = 1,512,404,139.71/54,157.71
  6. Step 6: Final answer
    x = 27,925.92

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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.