Home / 73,133.57-109,678.61-31,013.03

Finding the Fourth Proportional to 73,133.57, 109,678.61 and 31,013.03

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Solution

The fourth proportional to 73,133.57, 109,678.61 and 31,013.03 is: 46,510.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,133.57 : 109,678.61 = 31,013.03 : x
  2. Step 2: Convert to fraction form
    73,133.57/109,678.61 = 31,013.03/x
  3. Step 3: Cross multiply
    73,133.57x = 109,678.61 × 31,013.03
  4. Step 4: Simplify right side
    73,133.57x = 3,401,465,318.83
  5. Step 5: Solve for x
    x = 3,401,465,318.83/73,133.57
  6. Step 6: Final answer
    x = 46,510.32

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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.