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Finding the Fourth Proportional to 57,008.32, 85,512.48 and 15,455.32

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Solution

The fourth proportional to 57,008.32, 85,512.48 and 15,455.32 is: 23,182.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008.32 : 85,512.48 = 15,455.32 : x
  2. Step 2: Convert to fraction form
    57,008.32/85,512.48 = 15,455.32/x
  3. Step 3: Cross multiply
    57,008.32x = 85,512.48 × 15,455.32
  4. Step 4: Simplify right side
    57,008.32x = 1,321,622,742.39
  5. Step 5: Solve for x
    x = 1,321,622,742.39/57,008.32
  6. Step 6: Final answer
    x = 23,182.98

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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.