Home / 57,385.77-86,076.28-19,954.32

Finding the Fourth Proportional to 57,385.77, 86,076.28 and 19,954.32

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Solution

The fourth proportional to 57,385.77, 86,076.28 and 19,954.32 is: 29,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,385.77 : 86,076.28 = 19,954.32 : x
  2. Step 2: Convert to fraction form
    57,385.77/86,076.28 = 19,954.32/x
  3. Step 3: Cross multiply
    57,385.77x = 86,076.28 × 19,954.32
  4. Step 4: Simplify right side
    57,385.77x = 1,717,593,635.53
  5. Step 5: Solve for x
    x = 1,717,593,635.53/57,385.77
  6. Step 6: Final answer
    x = 29,930.65

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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.