Home / 78,745.22-118,092.16-26,140.58

Finding the Fourth Proportional to 78,745.22, 118,092.16 and 26,140.58

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Solution

The fourth proportional to 78,745.22, 118,092.16 and 26,140.58 is: 39,202.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,745.22 : 118,092.16 = 26,140.58 : x
  2. Step 2: Convert to fraction form
    78,745.22/118,092.16 = 26,140.58/x
  3. Step 3: Cross multiply
    78,745.22x = 118,092.16 × 26,140.58
  4. Step 4: Simplify right side
    78,745.22x = 3,086,997,555.85
  5. Step 5: Solve for x
    x = 3,086,997,555.85/78,745.22
  6. Step 6: Final answer
    x = 39,202.35

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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.