Home / 68,421.61-94,413.49-38,208.61

Finding the Fourth Proportional to 68,421.61, 94,413.49 and 38,208.61

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Solution

The fourth proportional to 68,421.61, 94,413.49 and 38,208.61 is: 52,723.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,421.61 : 94,413.49 = 38,208.61 : x
  2. Step 2: Convert to fraction form
    68,421.61/94,413.49 = 38,208.61/x
  3. Step 3: Cross multiply
    68,421.61x = 94,413.49 × 38,208.61
  4. Step 4: Simplify right side
    68,421.61x = 3,607,408,218.15
  5. Step 5: Solve for x
    x = 3,607,408,218.15/68,421.61
  6. Step 6: Final answer
    x = 52,723.23

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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.