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Finding the Fourth Proportional to 57,008.10, 85,512.15 and 36,012.90

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Solution

The fourth proportional to 57,008.10, 85,512.15 and 36,012.90 is: 54,019.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008.10 : 85,512.15 = 36,012.90 : x
  2. Step 2: Convert to fraction form
    57,008.10/85,512.15 = 36,012.90/x
  3. Step 3: Cross multiply
    57,008.10x = 85,512.15 × 36,012.90
  4. Step 4: Simplify right side
    57,008.10x = 3,079,540,506.74
  5. Step 5: Solve for x
    x = 3,079,540,506.74/57,008.10
  6. Step 6: Final answer
    x = 54,019.35

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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.