Home / 49,212.78-73,783.40-19,621.74

Finding the Fourth Proportional to 49,212.78, 73,783.40 and 19,621.74

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Solution

The fourth proportional to 49,212.78, 73,783.40 and 19,621.74 is: 29,418.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,212.78 : 73,783.40 = 19,621.74 : x
  2. Step 2: Convert to fraction form
    49,212.78/73,783.40 = 19,621.74/x
  3. Step 3: Cross multiply
    49,212.78x = 73,783.40 × 19,621.74
  4. Step 4: Simplify right side
    49,212.78x = 1,447,758,691.12
  5. Step 5: Solve for x
    x = 1,447,758,691.12/49,212.78
  6. Step 6: Final answer
    x = 29,418.35

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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.