Home / 54,115.84-81,173.88-20,851.58

Finding the Fourth Proportional to 54,115.84, 81,173.88 and 20,851.58

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Solution

The fourth proportional to 54,115.84, 81,173.88 and 20,851.58 is: 31,277.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,115.84 : 81,173.88 = 20,851.58 : x
  2. Step 2: Convert to fraction form
    54,115.84/81,173.88 = 20,851.58/x
  3. Step 3: Cross multiply
    54,115.84x = 81,173.88 × 20,851.58
  4. Step 4: Simplify right side
    54,115.84x = 1,692,603,652.73
  5. Step 5: Solve for x
    x = 1,692,603,652.73/54,115.84
  6. Step 6: Final answer
    x = 31,277.42

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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.