Home / 67,659.32-101,503.93-20,272.48

Finding the Fourth Proportional to 67,659.32, 101,503.93 and 20,272.48

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Solution

The fourth proportional to 67,659.32, 101,503.93 and 20,272.48 is: 30,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,659.32 : 101,503.93 = 20,272.48 : x
  2. Step 2: Convert to fraction form
    67,659.32/101,503.93 = 20,272.48/x
  3. Step 3: Cross multiply
    67,659.32x = 101,503.93 × 20,272.48
  4. Step 4: Simplify right side
    67,659.32x = 2,057,736,390.85
  5. Step 5: Solve for x
    x = 2,057,736,390.85/67,659.32
  6. Step 6: Final answer
    x = 30,413.20

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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.