Home / 78,961.08-118,443.76-26,368.68

Finding the Fourth Proportional to 78,961.08, 118,443.76 and 26,368.68

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Solution

The fourth proportional to 78,961.08, 118,443.76 and 26,368.68 is: 39,553.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,961.08 : 118,443.76 = 26,368.68 : x
  2. Step 2: Convert to fraction form
    78,961.08/118,443.76 = 26,368.68/x
  3. Step 3: Cross multiply
    78,961.08x = 118,443.76 × 26,368.68
  4. Step 4: Simplify right side
    78,961.08x = 3,123,205,605.44
  5. Step 5: Solve for x
    x = 3,123,205,605.44/78,961.08
  6. Step 6: Final answer
    x = 39,553.73

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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.