Home / 78,773.04-118,107.32-41,287.86

Finding the Fourth Proportional to 78,773.04, 118,107.32 and 41,287.86

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Solution

The fourth proportional to 78,773.04, 118,107.32 and 41,287.86 is: 61,904.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,773.04 : 118,107.32 = 41,287.86 : x
  2. Step 2: Convert to fraction form
    78,773.04/118,107.32 = 41,287.86/x
  3. Step 3: Cross multiply
    78,773.04x = 118,107.32 × 41,287.86
  4. Step 4: Simplify right side
    78,773.04x = 4,876,398,286.70
  5. Step 5: Solve for x
    x = 4,876,398,286.70/78,773.04
  6. Step 6: Final answer
    x = 61,904.41

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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.