Home / 49,907.72-74,839.74-18,721.16

Finding the Fourth Proportional to 49,907.72, 74,839.74 and 18,721.16

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Solution

The fourth proportional to 49,907.72, 74,839.74 and 18,721.16 is: 28,073.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,907.72 : 74,839.74 = 18,721.16 : x
  2. Step 2: Convert to fraction form
    49,907.72/74,839.74 = 18,721.16/x
  3. Step 3: Cross multiply
    49,907.72x = 74,839.74 × 18,721.16
  4. Step 4: Simplify right side
    49,907.72x = 1,401,086,746.90
  5. Step 5: Solve for x
    x = 1,401,086,746.90/49,907.72
  6. Step 6: Final answer
    x = 28,073.55

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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.