Home / 83,413.26-125,119.89-21,083.76

Finding the Fourth Proportional to 83,413.26, 125,119.89 and 21,083.76

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Solution

The fourth proportional to 83,413.26, 125,119.89 and 21,083.76 is: 31,625.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,413.26 : 125,119.89 = 21,083.76 : x
  2. Step 2: Convert to fraction form
    83,413.26/125,119.89 = 21,083.76/x
  3. Step 3: Cross multiply
    83,413.26x = 125,119.89 × 21,083.76
  4. Step 4: Simplify right side
    83,413.26x = 2,637,997,731.99
  5. Step 5: Solve for x
    x = 2,637,997,731.99/83,413.26
  6. Step 6: Final answer
    x = 31,625.64

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1.5x scale

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.