Home / 69,785.28-104,675.49-30,342.47

Finding the Fourth Proportional to 69,785.28, 104,675.49 and 30,342.47

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Solution

The fourth proportional to 69,785.28, 104,675.49 and 30,342.47 is: 45,512.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,785.28 : 104,675.49 = 30,342.47 : x
  2. Step 2: Convert to fraction form
    69,785.28/104,675.49 = 30,342.47/x
  3. Step 3: Cross multiply
    69,785.28x = 104,675.49 × 30,342.47
  4. Step 4: Simplify right side
    69,785.28x = 3,176,112,391.68
  5. Step 5: Solve for x
    x = 3,176,112,391.68/69,785.28
  6. Step 6: Final answer
    x = 45,512.64

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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.