Home / 73,274.12-109,931.76-20,684.04

Finding the Fourth Proportional to 73,274.12, 109,931.76 and 20,684.04

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Solution

The fourth proportional to 73,274.12, 109,931.76 and 20,684.04 is: 31,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,274.12 : 109,931.76 = 20,684.04 : x
  2. Step 2: Convert to fraction form
    73,274.12/109,931.76 = 20,684.04/x
  3. Step 3: Cross multiply
    73,274.12x = 109,931.76 × 20,684.04
  4. Step 4: Simplify right side
    73,274.12x = 2,273,832,921.11
  5. Step 5: Solve for x
    x = 2,273,832,921.11/73,274.12
  6. Step 6: Final answer
    x = 31,031.87

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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.