Home / 40,137.71-60,189.11-21,413.57

Finding the Fourth Proportional to 40,137.71, 60,189.11 and 21,413.57

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Solution

The fourth proportional to 40,137.71, 60,189.11 and 21,413.57 is: 32,111.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,137.71 : 60,189.11 = 21,413.57 : x
  2. Step 2: Convert to fraction form
    40,137.71/60,189.11 = 21,413.57/x
  3. Step 3: Cross multiply
    40,137.71x = 60,189.11 × 21,413.57
  4. Step 4: Simplify right side
    40,137.71x = 1,288,863,312.21
  5. Step 5: Solve for x
    x = 1,288,863,312.21/40,137.71
  6. Step 6: Final answer
    x = 32,111.04

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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.