Home / 83,394.28-115,101.96-53,172.64

Finding the Fourth Proportional to 83,394.28, 115,101.96 and 53,172.64

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Solution

The fourth proportional to 83,394.28, 115,101.96 and 53,172.64 is: 73,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,394.28 : 115,101.96 = 53,172.64 : x
  2. Step 2: Convert to fraction form
    83,394.28/115,101.96 = 53,172.64/x
  3. Step 3: Cross multiply
    83,394.28x = 115,101.96 × 53,172.64
  4. Step 4: Simplify right side
    83,394.28x = 6,120,275,082.37
  5. Step 5: Solve for x
    x = 6,120,275,082.37/83,394.28
  6. Step 6: Final answer
    x = 73,389.63

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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.