Home / 54,272.30-81,408.45-38,525.90

Finding the Fourth Proportional to 54,272.30, 81,408.45 and 38,525.90

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Solution

The fourth proportional to 54,272.30, 81,408.45 and 38,525.90 is: 57,788.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,272.30 : 81,408.45 = 38,525.90 : x
  2. Step 2: Convert to fraction form
    54,272.30/81,408.45 = 38,525.90/x
  3. Step 3: Cross multiply
    54,272.30x = 81,408.45 × 38,525.90
  4. Step 4: Simplify right side
    54,272.30x = 3,136,333,803.86
  5. Step 5: Solve for x
    x = 3,136,333,803.86/54,272.30
  6. Step 6: Final answer
    x = 57,788.85

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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.