Home / 69,921.40-104,883.18-20,000.56

Finding the Fourth Proportional to 69,921.40, 104,883.18 and 20,000.56

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Solution

The fourth proportional to 69,921.40, 104,883.18 and 20,000.56 is: 30,001.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,921.40 : 104,883.18 = 20,000.56 : x
  2. Step 2: Convert to fraction form
    69,921.40/104,883.18 = 20,000.56/x
  3. Step 3: Cross multiply
    69,921.40x = 104,883.18 × 20,000.56
  4. Step 4: Simplify right side
    69,921.40x = 2,097,722,334.58
  5. Step 5: Solve for x
    x = 2,097,722,334.58/69,921.40
  6. Step 6: Final answer
    x = 30,001.15

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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.