Home / 67,134.60-100,696.08-31,587.48

Finding the Fourth Proportional to 67,134.60, 100,696.08 and 31,587.48

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Solution

The fourth proportional to 67,134.60, 100,696.08 and 31,587.48 is: 47,378.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,134.60 : 100,696.08 = 31,587.48 : x
  2. Step 2: Convert to fraction form
    67,134.60/100,696.08 = 31,587.48/x
  3. Step 3: Cross multiply
    67,134.60x = 100,696.08 × 31,587.48
  4. Step 4: Simplify right side
    67,134.60x = 3,180,735,413.08
  5. Step 5: Solve for x
    x = 3,180,735,413.08/67,134.60
  6. Step 6: Final answer
    x = 47,378.48

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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.