Home / 73,020.11-109,541.43-30,900.42

Finding the Fourth Proportional to 73,020.11, 109,541.43 and 30,900.42

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Solution

The fourth proportional to 73,020.11, 109,541.43 and 30,900.42 is: 46,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,020.11 : 109,541.43 = 30,900.42 : x
  2. Step 2: Convert to fraction form
    73,020.11/109,541.43 = 30,900.42/x
  3. Step 3: Cross multiply
    73,020.11x = 109,541.43 × 30,900.42
  4. Step 4: Simplify right side
    73,020.11x = 3,384,876,194.40
  5. Step 5: Solve for x
    x = 3,384,876,194.40/73,020.11
  6. Step 6: Final answer
    x = 46,355.40

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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.