Home / 78,736.26-118,034.46-30,693.80

Finding the Fourth Proportional to 78,736.26, 118,034.46 and 30,693.80

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Solution

The fourth proportional to 78,736.26, 118,034.46 and 30,693.80 is: 46,013.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,736.26 : 118,034.46 = 30,693.80 : x
  2. Step 2: Convert to fraction form
    78,736.26/118,034.46 = 30,693.80/x
  3. Step 3: Cross multiply
    78,736.26x = 118,034.46 × 30,693.80
  4. Step 4: Simplify right side
    78,736.26x = 3,622,926,108.35
  5. Step 5: Solve for x
    x = 3,622,926,108.35/78,736.26
  6. Step 6: Final answer
    x = 46,013.44

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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.