Home / 71,243.13-98,315.91-39,413.16

Finding the Fourth Proportional to 71,243.13, 98,315.91 and 39,413.16

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Solution

The fourth proportional to 71,243.13, 98,315.91 and 39,413.16 is: 54,390.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,243.13 : 98,315.91 = 39,413.16 : x
  2. Step 2: Convert to fraction form
    71,243.13/98,315.91 = 39,413.16/x
  3. Step 3: Cross multiply
    71,243.13x = 98,315.91 × 39,413.16
  4. Step 4: Simplify right side
    71,243.13x = 3,874,940,691.38
  5. Step 5: Solve for x
    x = 3,874,940,691.38/71,243.13
  6. Step 6: Final answer
    x = 54,390.38

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1.5x scale

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.