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Finding the Fourth Proportional to 57,508.55, 86,235.48 and 20,064.09

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Solution

The fourth proportional to 57,508.55, 86,235.48 and 20,064.09 is: 30,086.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,508.55 : 86,235.48 = 20,064.09 : x
  2. Step 2: Convert to fraction form
    57,508.55/86,235.48 = 20,064.09/x
  3. Step 3: Cross multiply
    57,508.55x = 86,235.48 × 20,064.09
  4. Step 4: Simplify right side
    57,508.55x = 1,730,236,431.91
  5. Step 5: Solve for x
    x = 1,730,236,431.91/57,508.55
  6. Step 6: Final answer
    x = 30,086.60

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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.