Home / 74,056.87-102,198.37-40,065.28

Finding the Fourth Proportional to 74,056.87, 102,198.37 and 40,065.28

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Solution

The fourth proportional to 74,056.87, 102,198.37 and 40,065.28 is: 55,290.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,056.87 : 102,198.37 = 40,065.28 : x
  2. Step 2: Convert to fraction form
    74,056.87/102,198.37 = 40,065.28/x
  3. Step 3: Cross multiply
    74,056.87x = 102,198.37 × 40,065.28
  4. Step 4: Simplify right side
    74,056.87x = 4,094,606,660.26
  5. Step 5: Solve for x
    x = 4,094,606,660.26/74,056.87
  6. Step 6: Final answer
    x = 55,290.03

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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.