Home / 74,142.28-102,309.84-43,922.48

Finding the Fourth Proportional to 74,142.28, 102,309.84 and 43,922.48

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Solution

The fourth proportional to 74,142.28, 102,309.84 and 43,922.48 is: 60,609.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,142.28 : 102,309.84 = 43,922.48 : x
  2. Step 2: Convert to fraction form
    74,142.28/102,309.84 = 43,922.48/x
  3. Step 3: Cross multiply
    74,142.28x = 102,309.84 × 43,922.48
  4. Step 4: Simplify right side
    74,142.28x = 4,493,701,901.20
  5. Step 5: Solve for x
    x = 4,493,701,901.20/74,142.28
  6. Step 6: Final answer
    x = 60,609.17

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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.