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Finding the Fourth Proportional to 57,487.30, 86,230.77 and 18,047.37

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Solution

The fourth proportional to 57,487.30, 86,230.77 and 18,047.37 is: 27,071.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,487.30 : 86,230.77 = 18,047.37 : x
  2. Step 2: Convert to fraction form
    57,487.30/86,230.77 = 18,047.37/x
  3. Step 3: Cross multiply
    57,487.30x = 86,230.77 × 18,047.37
  4. Step 4: Simplify right side
    57,487.30x = 1,556,238,611.57
  5. Step 5: Solve for x
    x = 1,556,238,611.57/57,487.30
  6. Step 6: Final answer
    x = 27,071.00

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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.