Home / 78,768.45-118,092.53-39,353.24

Finding the Fourth Proportional to 78,768.45, 118,092.53 and 39,353.24

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Solution

The fourth proportional to 78,768.45, 118,092.53 and 39,353.24 is: 58,999.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,768.45 : 118,092.53 = 39,353.24 : x
  2. Step 2: Convert to fraction form
    78,768.45/118,092.53 = 39,353.24/x
  3. Step 3: Cross multiply
    78,768.45x = 118,092.53 × 39,353.24
  4. Step 4: Simplify right side
    78,768.45x = 4,647,324,068.91
  5. Step 5: Solve for x
    x = 4,647,324,068.91/78,768.45
  6. Step 6: Final answer
    x = 58,999.82

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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.