Home / 83,390.25-115,096.41-53,168.61

Finding the Fourth Proportional to 83,390.25, 115,096.41 and 53,168.61

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Solution

The fourth proportional to 83,390.25, 115,096.41 and 53,168.61 is: 73,384.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,390.25 : 115,096.41 = 53,168.61 : x
  2. Step 2: Convert to fraction form
    83,390.25/115,096.41 = 53,168.61/x
  3. Step 3: Cross multiply
    83,390.25x = 115,096.41 × 53,168.61
  4. Step 4: Simplify right side
    83,390.25x = 6,119,516,135.69
  5. Step 5: Solve for x
    x = 6,119,516,135.69/83,390.25
  6. Step 6: Final answer
    x = 73,384.07

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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.