Home / 78,919.58-118,396.87-22,755.32

Finding the Fourth Proportional to 78,919.58, 118,396.87 and 22,755.32

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Solution

The fourth proportional to 78,919.58, 118,396.87 and 22,755.32 is: 34,138.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,919.58 : 118,396.87 = 22,755.32 : x
  2. Step 2: Convert to fraction form
    78,919.58/118,396.87 = 22,755.32/x
  3. Step 3: Cross multiply
    78,919.58x = 118,396.87 × 22,755.32
  4. Step 4: Simplify right side
    78,919.58x = 2,694,158,071.86
  5. Step 5: Solve for x
    x = 2,694,158,071.86/78,919.58
  6. Step 6: Final answer
    x = 34,138.02

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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.