Home / 81,461.15-122,246.40-48,145.85

Finding the Fourth Proportional to 81,461.15, 122,246.40 and 48,145.85

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Solution

The fourth proportional to 81,461.15, 122,246.40 and 48,145.85 is: 72,251.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,461.15 : 122,246.40 = 48,145.85 : x
  2. Step 2: Convert to fraction form
    81,461.15/122,246.40 = 48,145.85/x
  3. Step 3: Cross multiply
    81,461.15x = 122,246.40 × 48,145.85
  4. Step 4: Simplify right side
    81,461.15x = 5,885,656,837.44
  5. Step 5: Solve for x
    x = 5,885,656,837.44/81,461.15
  6. Step 6: Final answer
    x = 72,251.09

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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.