Home / 78,822.40-118,233.60-49,297.90

Finding the Fourth Proportional to 78,822.40, 118,233.60 and 49,297.90

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Solution

The fourth proportional to 78,822.40, 118,233.60 and 49,297.90 is: 73,946.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,822.40 : 118,233.60 = 49,297.90 : x
  2. Step 2: Convert to fraction form
    78,822.40/118,233.60 = 49,297.90/x
  3. Step 3: Cross multiply
    78,822.40x = 118,233.60 × 49,297.90
  4. Step 4: Simplify right side
    78,822.40x = 5,828,668,189.44
  5. Step 5: Solve for x
    x = 5,828,668,189.44/78,822.40
  6. Step 6: Final answer
    x = 73,946.85

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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.