Home / 71,587.20-107,413.20-34,132.80

Finding the Fourth Proportional to 71,587.20, 107,413.20 and 34,132.80

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Solution

The fourth proportional to 71,587.20, 107,413.20 and 34,132.80 is: 51,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,587.20 : 107,413.20 = 34,132.80 : x
  2. Step 2: Convert to fraction form
    71,587.20/107,413.20 = 34,132.80/x
  3. Step 3: Cross multiply
    71,587.20x = 107,413.20 × 34,132.80
  4. Step 4: Simplify right side
    71,587.20x = 3,666,313,272.96
  5. Step 5: Solve for x
    x = 3,666,313,272.96/71,587.20
  6. Step 6: Final answer
    x = 51,214.65

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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.