Home / 69,972.28-104,955.80-20,052.32

Finding the Fourth Proportional to 69,972.28, 104,955.80 and 20,052.32

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Solution

The fourth proportional to 69,972.28, 104,955.80 and 20,052.32 is: 30,077.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,972.28 : 104,955.80 = 20,052.32 : x
  2. Step 2: Convert to fraction form
    69,972.28/104,955.80 = 20,052.32/x
  3. Step 3: Cross multiply
    69,972.28x = 104,955.80 × 20,052.32
  4. Step 4: Simplify right side
    69,972.28x = 2,104,607,287.46
  5. Step 5: Solve for x
    x = 2,104,607,287.46/69,972.28
  6. Step 6: Final answer
    x = 30,077.73

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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.