Home / 80,528.36-120,795.06-38,413.01

Finding the Fourth Proportional to 80,528.36, 120,795.06 and 38,413.01

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Solution

The fourth proportional to 80,528.36, 120,795.06 and 38,413.01 is: 57,620.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,528.36 : 120,795.06 = 38,413.01 : x
  2. Step 2: Convert to fraction form
    80,528.36/120,795.06 = 38,413.01/x
  3. Step 3: Cross multiply
    80,528.36x = 120,795.06 × 38,413.01
  4. Step 4: Simplify right side
    80,528.36x = 4,640,101,847.73
  5. Step 5: Solve for x
    x = 4,640,101,847.73/80,528.36
  6. Step 6: Final answer
    x = 57,620.72

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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.