Home / 53,413.51-80,063.76-20,119.17

Finding the Fourth Proportional to 53,413.51, 80,063.76 and 20,119.17

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Solution

The fourth proportional to 53,413.51, 80,063.76 and 20,119.17 is: 30,157.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,413.51 : 80,063.76 = 20,119.17 : x
  2. Step 2: Convert to fraction form
    53,413.51/80,063.76 = 20,119.17/x
  3. Step 3: Cross multiply
    53,413.51x = 80,063.76 × 20,119.17
  4. Step 4: Simplify right side
    53,413.51x = 1,610,816,398.28
  5. Step 5: Solve for x
    x = 1,610,816,398.28/53,413.51
  6. Step 6: Final answer
    x = 30,157.47

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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.