Home / 70,013.49-104,989.32-20,082.26

Finding the Fourth Proportional to 70,013.49, 104,989.32 and 20,082.26

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Solution

The fourth proportional to 70,013.49, 104,989.32 and 20,082.26 is: 30,114.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,013.49 : 104,989.32 = 20,082.26 : x
  2. Step 2: Convert to fraction form
    70,013.49/104,989.32 = 20,082.26/x
  3. Step 3: Cross multiply
    70,013.49x = 104,989.32 × 20,082.26
  4. Step 4: Simplify right side
    70,013.49x = 2,108,422,296.52
  5. Step 5: Solve for x
    x = 2,108,422,296.52/70,013.49
  6. Step 6: Final answer
    x = 30,114.52

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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.