Home / 69,089.02-103,633.52-19,169.12

Finding the Fourth Proportional to 69,089.02, 103,633.52 and 19,169.12

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Solution

The fourth proportional to 69,089.02, 103,633.52 and 19,169.12 is: 28,753.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,089.02 : 103,633.52 = 19,169.12 : x
  2. Step 2: Convert to fraction form
    69,089.02/103,633.52 = 19,169.12/x
  3. Step 3: Cross multiply
    69,089.02x = 103,633.52 × 19,169.12
  4. Step 4: Simplify right side
    69,089.02x = 1,986,563,380.90
  5. Step 5: Solve for x
    x = 1,986,563,380.90/69,089.02
  6. Step 6: Final answer
    x = 28,753.68

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Similar ratio
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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.