Home / 51,154.97-76,720.30-19,553.42

Finding the Fourth Proportional to 51,154.97, 76,720.30 and 19,553.42

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Solution

The fourth proportional to 51,154.97, 76,720.30 and 19,553.42 is: 29,325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,154.97 : 76,720.30 = 19,553.42 : x
  2. Step 2: Convert to fraction form
    51,154.97/76,720.30 = 19,553.42/x
  3. Step 3: Cross multiply
    51,154.97x = 76,720.30 × 19,553.42
  4. Step 4: Simplify right side
    51,154.97x = 1,500,144,248.43
  5. Step 5: Solve for x
    x = 1,500,144,248.43/51,154.97
  6. Step 6: Final answer
    x = 29,325.48

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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.