Home / 57,883.17-86,830.98-18,431.05

Finding the Fourth Proportional to 57,883.17, 86,830.98 and 18,431.05

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Solution

The fourth proportional to 57,883.17, 86,830.98 and 18,431.05 is: 27,648.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,883.17 : 86,830.98 = 18,431.05 : x
  2. Step 2: Convert to fraction form
    57,883.17/86,830.98 = 18,431.05/x
  3. Step 3: Cross multiply
    57,883.17x = 86,830.98 × 18,431.05
  4. Step 4: Simplify right side
    57,883.17x = 1,600,386,304.93
  5. Step 5: Solve for x
    x = 1,600,386,304.93/57,883.17
  6. Step 6: Final answer
    x = 27,648.56

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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.