Home / 57,740.10-86,593.95-18,309.30

Finding the Fourth Proportional to 57,740.10, 86,593.95 and 18,309.30

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Solution

The fourth proportional to 57,740.10, 86,593.95 and 18,309.30 is: 27,458.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,740.10 : 86,593.95 = 18,309.30 : x
  2. Step 2: Convert to fraction form
    57,740.10/86,593.95 = 18,309.30/x
  3. Step 3: Cross multiply
    57,740.10x = 86,593.95 × 18,309.30
  4. Step 4: Simplify right side
    57,740.10x = 1,585,474,608.74
  5. Step 5: Solve for x
    x = 1,585,474,608.74/57,740.10
  6. Step 6: Final answer
    x = 27,458.81

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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.