Home / 73,284.05-109,930.32-20,689.13

Finding the Fourth Proportional to 73,284.05, 109,930.32 and 20,689.13

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Solution

The fourth proportional to 73,284.05, 109,930.32 and 20,689.13 is: 31,034.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,284.05 : 109,930.32 = 20,689.13 : x
  2. Step 2: Convert to fraction form
    73,284.05/109,930.32 = 20,689.13/x
  3. Step 3: Cross multiply
    73,284.05x = 109,930.32 × 20,689.13
  4. Step 4: Simplify right side
    73,284.05x = 2,274,362,131.77
  5. Step 5: Solve for x
    x = 2,274,362,131.77/73,284.05
  6. Step 6: Final answer
    x = 31,034.89

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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.