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Finding the Fourth Proportional to 57,008.72, 85,511.64 and 15,454.64

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Solution

The fourth proportional to 57,008.72, 85,511.64 and 15,454.64 is: 23,181.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008.72 : 85,511.64 = 15,454.64 : x
  2. Step 2: Convert to fraction form
    57,008.72/85,511.64 = 15,454.64/x
  3. Step 3: Cross multiply
    57,008.72x = 85,511.64 × 15,454.64
  4. Step 4: Simplify right side
    57,008.72x = 1,321,551,612.01
  5. Step 5: Solve for x
    x = 1,321,551,612.01/57,008.72
  6. Step 6: Final answer
    x = 23,181.57

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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.