Home / 61,272.20-91,908.30-51,249.80

Finding the Fourth Proportional to 61,272.20, 91,908.30 and 51,249.80

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Solution

The fourth proportional to 61,272.20, 91,908.30 and 51,249.80 is: 76,874.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,272.20 : 91,908.30 = 51,249.80 : x
  2. Step 2: Convert to fraction form
    61,272.20/91,908.30 = 51,249.80/x
  3. Step 3: Cross multiply
    61,272.20x = 91,908.30 × 51,249.80
  4. Step 4: Simplify right side
    61,272.20x = 4,710,281,993.34
  5. Step 5: Solve for x
    x = 4,710,281,993.34/61,272.20
  6. Step 6: Final answer
    x = 76,874.70

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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.