Home / 57,905.95-86,871.10-19,958.68

Finding the Fourth Proportional to 57,905.95, 86,871.10 and 19,958.68

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Solution

The fourth proportional to 57,905.95, 86,871.10 and 19,958.68 is: 29,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,905.95 : 86,871.10 = 19,958.68 : x
  2. Step 2: Convert to fraction form
    57,905.95/86,871.10 = 19,958.68/x
  3. Step 3: Cross multiply
    57,905.95x = 86,871.10 × 19,958.68
  4. Step 4: Simplify right side
    57,905.95x = 1,733,832,623.33
  5. Step 5: Solve for x
    x = 1,733,832,623.33/57,905.95
  6. Step 6: Final answer
    x = 29,942.22

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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.