Home / 57,699.05-86,561.12-18,256.50

Finding the Fourth Proportional to 57,699.05, 86,561.12 and 18,256.50

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Solution

The fourth proportional to 57,699.05, 86,561.12 and 18,256.50 is: 27,388.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,699.05 : 86,561.12 = 18,256.50 : x
  2. Step 2: Convert to fraction form
    57,699.05/86,561.12 = 18,256.50/x
  3. Step 3: Cross multiply
    57,699.05x = 86,561.12 × 18,256.50
  4. Step 4: Simplify right side
    57,699.05x = 1,580,303,132.92
  5. Step 5: Solve for x
    x = 1,580,303,132.92/57,699.05
  6. Step 6: Final answer
    x = 27,388.72

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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.