Home / 78,897.25-108,878.60-43,087.26

Finding the Fourth Proportional to 78,897.25, 108,878.60 and 43,087.26

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Solution

The fourth proportional to 78,897.25, 108,878.60 and 43,087.26 is: 59,460.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,897.25 : 108,878.60 = 43,087.26 : x
  2. Step 2: Convert to fraction form
    78,897.25/108,878.60 = 43,087.26/x
  3. Step 3: Cross multiply
    78,897.25x = 108,878.60 × 43,087.26
  4. Step 4: Simplify right side
    78,897.25x = 4,691,280,654.35
  5. Step 5: Solve for x
    x = 4,691,280,654.35/78,897.25
  6. Step 6: Final answer
    x = 59,460.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.