Home / 73,101.12-109,685.04-39,771.20

Finding the Fourth Proportional to 73,101.12, 109,685.04 and 39,771.20

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Solution

The fourth proportional to 73,101.12, 109,685.04 and 39,771.20 is: 59,674.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,101.12 : 109,685.04 = 39,771.20 : x
  2. Step 2: Convert to fraction form
    73,101.12/109,685.04 = 39,771.20/x
  3. Step 3: Cross multiply
    73,101.12x = 109,685.04 × 39,771.20
  4. Step 4: Simplify right side
    73,101.12x = 4,362,305,662.85
  5. Step 5: Solve for x
    x = 4,362,305,662.85/73,101.12
  6. Step 6: Final answer
    x = 59,674.95

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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.