Home / 45,907.75-68,890.76-19,612.69

Finding the Fourth Proportional to 45,907.75, 68,890.76 and 19,612.69

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Solution

The fourth proportional to 45,907.75, 68,890.76 and 19,612.69 is: 29,431.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,907.75 : 68,890.76 = 19,612.69 : x
  2. Step 2: Convert to fraction form
    45,907.75/68,890.76 = 19,612.69/x
  3. Step 3: Cross multiply
    45,907.75x = 68,890.76 × 19,612.69
  4. Step 4: Simplify right side
    45,907.75x = 1,351,133,119.74
  5. Step 5: Solve for x
    x = 1,351,133,119.74/45,907.75
  6. Step 6: Final answer
    x = 29,431.48

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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.