Home / 83,413.62-115,109.91-45,172.53

Finding the Fourth Proportional to 83,413.62, 115,109.91 and 45,172.53

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Solution

The fourth proportional to 83,413.62, 115,109.91 and 45,172.53 is: 62,337.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,413.62 : 115,109.91 = 45,172.53 : x
  2. Step 2: Convert to fraction form
    83,413.62/115,109.91 = 45,172.53/x
  3. Step 3: Cross multiply
    83,413.62x = 115,109.91 × 45,172.53
  4. Step 4: Simplify right side
    83,413.62x = 5,199,805,862.77
  5. Step 5: Solve for x
    x = 5,199,805,862.77/83,413.62
  6. Step 6: Final answer
    x = 62,337.61

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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.