Home / 57,857.31-86,762.25-18,403.83

Finding the Fourth Proportional to 57,857.31, 86,762.25 and 18,403.83

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Solution

The fourth proportional to 57,857.31, 86,762.25 and 18,403.83 is: 27,598.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,857.31 : 86,762.25 = 18,403.83 : x
  2. Step 2: Convert to fraction form
    57,857.31/86,762.25 = 18,403.83/x
  3. Step 3: Cross multiply
    57,857.31x = 86,762.25 × 18,403.83
  4. Step 4: Simplify right side
    57,857.31x = 1,596,757,699.42
  5. Step 5: Solve for x
    x = 1,596,757,699.42/57,857.31
  6. Step 6: Final answer
    x = 27,598.20

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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.