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Finding the Fourth Proportional to 57,066.21, 85,599.41 and 15,513.21

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Solution

The fourth proportional to 57,066.21, 85,599.41 and 15,513.21 is: 23,269.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,066.21 : 85,599.41 = 15,513.21 : x
  2. Step 2: Convert to fraction form
    57,066.21/85,599.41 = 15,513.21/x
  3. Step 3: Cross multiply
    57,066.21x = 85,599.41 × 15,513.21
  4. Step 4: Simplify right side
    57,066.21x = 1,327,921,545.64
  5. Step 5: Solve for x
    x = 1,327,921,545.64/57,066.21
  6. Step 6: Final answer
    x = 23,269.84

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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.