Home / 74,910.18-112,299.66-28,195.86

Finding the Fourth Proportional to 74,910.18, 112,299.66 and 28,195.86

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Solution

The fourth proportional to 74,910.18, 112,299.66 and 28,195.86 is: 42,269.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,910.18 : 112,299.66 = 28,195.86 : x
  2. Step 2: Convert to fraction form
    74,910.18/112,299.66 = 28,195.86/x
  3. Step 3: Cross multiply
    74,910.18x = 112,299.66 × 28,195.86
  4. Step 4: Simplify right side
    74,910.18x = 3,166,385,491.41
  5. Step 5: Solve for x
    x = 3,166,385,491.41/74,910.18
  6. Step 6: Final answer
    x = 42,269.09

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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.