Home / 80,709.63-111,378.75-44,413.28

Finding the Fourth Proportional to 80,709.63, 111,378.75 and 44,413.28

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Solution

The fourth proportional to 80,709.63, 111,378.75 and 44,413.28 is: 61,290.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,709.63 : 111,378.75 = 44,413.28 : x
  2. Step 2: Convert to fraction form
    80,709.63/111,378.75 = 44,413.28/x
  3. Step 3: Cross multiply
    80,709.63x = 111,378.75 × 44,413.28
  4. Step 4: Simplify right side
    80,709.63x = 4,946,695,609.80
  5. Step 5: Solve for x
    x = 4,946,695,609.80/80,709.63
  6. Step 6: Final answer
    x = 61,290.03

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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.