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Finding the Fourth Proportional to 57,610.53, 86,415.80 and 18,171.63

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Solution

The fourth proportional to 57,610.53, 86,415.80 and 18,171.63 is: 27,257.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,610.53 : 86,415.80 = 18,171.63 : x
  2. Step 2: Convert to fraction form
    57,610.53/86,415.80 = 18,171.63/x
  3. Step 3: Cross multiply
    57,610.53x = 86,415.80 × 18,171.63
  4. Step 4: Simplify right side
    57,610.53x = 1,570,315,852.90
  5. Step 5: Solve for x
    x = 1,570,315,852.90/57,610.53
  6. Step 6: Final answer
    x = 27,257.45

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1.5x scale

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.