Home / 78,949.66-118,432.38-22,791.14

Finding the Fourth Proportional to 78,949.66, 118,432.38 and 22,791.14

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Solution

The fourth proportional to 78,949.66, 118,432.38 and 22,791.14 is: 34,188.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,949.66 : 118,432.38 = 22,791.14 : x
  2. Step 2: Convert to fraction form
    78,949.66/118,432.38 = 22,791.14/x
  3. Step 3: Cross multiply
    78,949.66x = 118,432.38 × 22,791.14
  4. Step 4: Simplify right side
    78,949.66x = 2,699,208,953.11
  5. Step 5: Solve for x
    x = 2,699,208,953.11/78,949.66
  6. Step 6: Final answer
    x = 34,188.99

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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.