Home / 87,148.67-120,237.74-48,902.60

Finding the Fourth Proportional to 87,148.67, 120,237.74 and 48,902.60

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Solution

The fourth proportional to 87,148.67, 120,237.74 and 48,902.60 is: 67,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,148.67 : 120,237.74 = 48,902.60 : x
  2. Step 2: Convert to fraction form
    87,148.67/120,237.74 = 48,902.60/x
  3. Step 3: Cross multiply
    87,148.67x = 120,237.74 × 48,902.60
  4. Step 4: Simplify right side
    87,148.67x = 5,879,938,104.12
  5. Step 5: Solve for x
    x = 5,879,938,104.12/87,148.67
  6. Step 6: Final answer
    x = 67,470.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.