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Finding the Fourth Proportional to 66,924.78, 100,350.51 and 30,862.09

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Solution

The fourth proportional to 66,924.78, 100,350.51 and 30,862.09 is: 46,276.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,924.78 : 100,350.51 = 30,862.09 : x
  2. Step 2: Convert to fraction form
    66,924.78/100,350.51 = 30,862.09/x
  3. Step 3: Cross multiply
    66,924.78x = 100,350.51 × 30,862.09
  4. Step 4: Simplify right side
    66,924.78x = 3,097,026,471.17
  5. Step 5: Solve for x
    x = 3,097,026,471.17/66,924.78
  6. Step 6: Final answer
    x = 46,276.23

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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.