Home / 78,977.76-118,449.18-22,805.64

Finding the Fourth Proportional to 78,977.76, 118,449.18 and 22,805.64

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Solution

The fourth proportional to 78,977.76, 118,449.18 and 22,805.64 is: 34,203.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,977.76 : 118,449.18 = 22,805.64 : x
  2. Step 2: Convert to fraction form
    78,977.76/118,449.18 = 22,805.64/x
  3. Step 3: Cross multiply
    78,977.76x = 118,449.18 × 22,805.64
  4. Step 4: Simplify right side
    78,977.76x = 2,701,309,357.38
  5. Step 5: Solve for x
    x = 2,701,309,357.38/78,977.76
  6. Step 6: Final answer
    x = 34,203.42

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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.