Home / 84,413.22-126,441.18-54,742.92

Finding the Fourth Proportional to 84,413.22, 126,441.18 and 54,742.92

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Solution

The fourth proportional to 84,413.22, 126,441.18 and 54,742.92 is: 81,998.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,413.22 : 126,441.18 = 54,742.92 : x
  2. Step 2: Convert to fraction form
    84,413.22/126,441.18 = 54,742.92/x
  3. Step 3: Cross multiply
    84,413.22x = 126,441.18 × 54,742.92
  4. Step 4: Simplify right side
    84,413.22x = 6,921,759,401.45
  5. Step 5: Solve for x
    x = 6,921,759,401.45/84,413.22
  6. Step 6: Final answer
    x = 81,998.52

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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.