Home / 54,272.20-81,408.30-48,915.40

Finding the Fourth Proportional to 54,272.20, 81,408.30 and 48,915.40

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Solution

The fourth proportional to 54,272.20, 81,408.30 and 48,915.40 is: 73,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,272.20 : 81,408.30 = 48,915.40 : x
  2. Step 2: Convert to fraction form
    54,272.20/81,408.30 = 48,915.40/x
  3. Step 3: Cross multiply
    54,272.20x = 81,408.30 × 48,915.40
  4. Step 4: Simplify right side
    54,272.20x = 3,982,119,557.82
  5. Step 5: Solve for x
    x = 3,982,119,557.82/54,272.20
  6. Step 6: Final answer
    x = 73,373.10

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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.