Home / 80,041.04-120,057.21-40,597.12

Finding the Fourth Proportional to 80,041.04, 120,057.21 and 40,597.12

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Solution

The fourth proportional to 80,041.04, 120,057.21 and 40,597.12 is: 60,893.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,041.04 : 120,057.21 = 40,597.12 : x
  2. Step 2: Convert to fraction form
    80,041.04/120,057.21 = 40,597.12/x
  3. Step 3: Cross multiply
    80,041.04x = 120,057.21 × 40,597.12
  4. Step 4: Simplify right side
    80,041.04x = 4,873,976,157.96
  5. Step 5: Solve for x
    x = 4,873,976,157.96/80,041.04
  6. Step 6: Final answer
    x = 60,893.47

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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.