Home / 72,847.87-109,272.51-20,261.45

Finding the Fourth Proportional to 72,847.87, 109,272.51 and 20,261.45

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Solution

The fourth proportional to 72,847.87, 109,272.51 and 20,261.45 is: 30,392.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,847.87 : 109,272.51 = 20,261.45 : x
  2. Step 2: Convert to fraction form
    72,847.87/109,272.51 = 20,261.45/x
  3. Step 3: Cross multiply
    72,847.87x = 109,272.51 × 20,261.45
  4. Step 4: Simplify right side
    72,847.87x = 2,214,019,770.92
  5. Step 5: Solve for x
    x = 2,214,019,770.92/72,847.87
  6. Step 6: Final answer
    x = 30,392.38

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1.5x scale

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.