Home / 74,621.42-102,975.00-40,629.36

Finding the Fourth Proportional to 74,621.42, 102,975.00 and 40,629.36

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Solution

The fourth proportional to 74,621.42, 102,975.00 and 40,629.36 is: 56,067.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,621.42 : 102,975.00 = 40,629.36 : x
  2. Step 2: Convert to fraction form
    74,621.42/102,975.00 = 40,629.36/x
  3. Step 3: Cross multiply
    74,621.42x = 102,975.00 × 40,629.36
  4. Step 4: Simplify right side
    74,621.42x = 4,183,808,579.80
  5. Step 5: Solve for x
    x = 4,183,808,579.80/74,621.42
  6. Step 6: Final answer
    x = 56,067.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.