Home / 78,845.54-118,204.45-53,822.57

Finding the Fourth Proportional to 78,845.54, 118,204.45 and 53,822.57

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Solution

The fourth proportional to 78,845.54, 118,204.45 and 53,822.57 is: 80,690.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,845.54 : 118,204.45 = 53,822.57 : x
  2. Step 2: Convert to fraction form
    78,845.54/118,204.45 = 53,822.57/x
  3. Step 3: Cross multiply
    78,845.54x = 118,204.45 × 53,822.57
  4. Step 4: Simplify right side
    78,845.54x = 6,362,066,558.86
  5. Step 5: Solve for x
    x = 6,362,066,558.86/78,845.54
  6. Step 6: Final answer
    x = 80,690.26

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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.