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Finding the Fourth Proportional to 57,999.99, 87,012.94 and 18,559.47

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Solution

The fourth proportional to 57,999.99, 87,012.94 and 18,559.47 is: 27,843.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,999.99 : 87,012.94 = 18,559.47 : x
  2. Step 2: Convert to fraction form
    57,999.99/87,012.94 = 18,559.47/x
  3. Step 3: Cross multiply
    57,999.99x = 87,012.94 × 18,559.47
  4. Step 4: Simplify right side
    57,999.99x = 1,614,914,174.28
  5. Step 5: Solve for x
    x = 1,614,914,174.28/57,999.99
  6. Step 6: Final answer
    x = 27,843.35

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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.