Home / 57,458.16-86,128.92-36,391.68

Finding the Fourth Proportional to 57,458.16, 86,128.92 and 36,391.68

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Solution

The fourth proportional to 57,458.16, 86,128.92 and 36,391.68 is: 54,550.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,458.16 : 86,128.92 = 36,391.68 : x
  2. Step 2: Convert to fraction form
    57,458.16/86,128.92 = 36,391.68/x
  3. Step 3: Cross multiply
    57,458.16x = 86,128.92 × 36,391.68
  4. Step 4: Simplify right side
    57,458.16x = 3,134,376,095.39
  5. Step 5: Solve for x
    x = 3,134,376,095.39/57,458.16
  6. Step 6: Final answer
    x = 54,550.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.