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Finding the Fourth Proportional to 51,627.78, 77,246.04 and 30,579.12

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Solution

The fourth proportional to 51,627.78, 77,246.04 and 30,579.12 is: 45,752.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,627.78 : 77,246.04 = 30,579.12 : x
  2. Step 2: Convert to fraction form
    51,627.78/77,246.04 = 30,579.12/x
  3. Step 3: Cross multiply
    51,627.78x = 77,246.04 × 30,579.12
  4. Step 4: Simplify right side
    51,627.78x = 2,362,115,926.68
  5. Step 5: Solve for x
    x = 2,362,115,926.68/51,627.78
  6. Step 6: Final answer
    x = 45,752.81

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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.