Home / 78,122.60-107,815.82-44,137.32

Finding the Fourth Proportional to 78,122.60, 107,815.82 and 44,137.32

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Solution

The fourth proportional to 78,122.60, 107,815.82 and 44,137.32 is: 60,913.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,122.60 : 107,815.82 = 44,137.32 : x
  2. Step 2: Convert to fraction form
    78,122.60/107,815.82 = 44,137.32/x
  3. Step 3: Cross multiply
    78,122.60x = 107,815.82 × 44,137.32
  4. Step 4: Simplify right side
    78,122.60x = 4,758,701,348.40
  5. Step 5: Solve for x
    x = 4,758,701,348.40/78,122.60
  6. Step 6: Final answer
    x = 60,913.25

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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.