Home / 69,689.12-96,219.60-53,529.44

Finding the Fourth Proportional to 69,689.12, 96,219.60 and 53,529.44

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Solution

The fourth proportional to 69,689.12, 96,219.60 and 53,529.44 is: 73,907.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,689.12 : 96,219.60 = 53,529.44 : x
  2. Step 2: Convert to fraction form
    69,689.12/96,219.60 = 53,529.44/x
  3. Step 3: Cross multiply
    69,689.12x = 96,219.60 × 53,529.44
  4. Step 4: Simplify right side
    69,689.12x = 5,150,581,305.02
  5. Step 5: Solve for x
    x = 5,150,581,305.02/69,689.12
  6. Step 6: Final answer
    x = 73,907.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.