Home / 49,489.20-74,212.74-19,089.36

Finding the Fourth Proportional to 49,489.20, 74,212.74 and 19,089.36

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Solution

The fourth proportional to 49,489.20, 74,212.74 and 19,089.36 is: 28,625.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,489.20 : 74,212.74 = 19,089.36 : x
  2. Step 2: Convert to fraction form
    49,489.20/74,212.74 = 19,089.36/x
  3. Step 3: Cross multiply
    49,489.20x = 74,212.74 × 19,089.36
  4. Step 4: Simplify right side
    49,489.20x = 1,416,673,710.45
  5. Step 5: Solve for x
    x = 1,416,673,710.45/49,489.20
  6. Step 6: Final answer
    x = 28,625.92

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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.