Home / 57,255.40-85,897.74-17,812.84

Finding the Fourth Proportional to 57,255.40, 85,897.74 and 17,812.84

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Solution

The fourth proportional to 57,255.40, 85,897.74 and 17,812.84 is: 26,723.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,255.40 : 85,897.74 = 17,812.84 : x
  2. Step 2: Convert to fraction form
    57,255.40/85,897.74 = 17,812.84/x
  3. Step 3: Cross multiply
    57,255.40x = 85,897.74 × 17,812.84
  4. Step 4: Simplify right side
    57,255.40x = 1,530,082,698.98
  5. Step 5: Solve for x
    x = 1,530,082,698.98/57,255.40
  6. Step 6: Final answer
    x = 26,723.81

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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.