Home / 78,780.06-118,144.44-26,175.42

Finding the Fourth Proportional to 78,780.06, 118,144.44 and 26,175.42

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Solution

The fourth proportional to 78,780.06, 118,144.44 and 26,175.42 is: 39,254.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,780.06 : 118,144.44 = 26,175.42 : x
  2. Step 2: Convert to fraction form
    78,780.06/118,144.44 = 26,175.42/x
  3. Step 3: Cross multiply
    78,780.06x = 118,144.44 × 26,175.42
  4. Step 4: Simplify right side
    78,780.06x = 3,092,480,337.66
  5. Step 5: Solve for x
    x = 3,092,480,337.66/78,780.06
  6. Step 6: Final answer
    x = 39,254.61

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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.