Home / 78,721.20-118,046.96-22,548.52

Finding the Fourth Proportional to 78,721.20, 118,046.96 and 22,548.52

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Solution

The fourth proportional to 78,721.20, 118,046.96 and 22,548.52 is: 33,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,721.20 : 118,046.96 = 22,548.52 : x
  2. Step 2: Convert to fraction form
    78,721.20/118,046.96 = 22,548.52/x
  3. Step 3: Cross multiply
    78,721.20x = 118,046.96 × 22,548.52
  4. Step 4: Simplify right side
    78,721.20x = 2,661,784,238.50
  5. Step 5: Solve for x
    x = 2,661,784,238.50/78,721.20
  6. Step 6: Final answer
    x = 33,812.80

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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.