Home / 70,013.96-104,989.28-20,082.59

Finding the Fourth Proportional to 70,013.96, 104,989.28 and 20,082.59

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Solution

The fourth proportional to 70,013.96, 104,989.28 and 20,082.59 is: 30,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,013.96 : 104,989.28 = 20,082.59 : x
  2. Step 2: Convert to fraction form
    70,013.96/104,989.28 = 20,082.59/x
  3. Step 3: Cross multiply
    70,013.96x = 104,989.28 × 20,082.59
  4. Step 4: Simplify right side
    70,013.96x = 2,108,456,039.28
  5. Step 5: Solve for x
    x = 2,108,456,039.28/70,013.96
  6. Step 6: Final answer
    x = 30,114.80

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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.