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Finding the Fourth Proportional to 38,650.60, 57,975.90 and 36,039.40

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Solution

The fourth proportional to 38,650.60, 57,975.90 and 36,039.40 is: 54,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,650.60 : 57,975.90 = 36,039.40 : x
  2. Step 2: Convert to fraction form
    38,650.60/57,975.90 = 36,039.40/x
  3. Step 3: Cross multiply
    38,650.60x = 57,975.90 × 36,039.40
  4. Step 4: Simplify right side
    38,650.60x = 2,089,416,650.46
  5. Step 5: Solve for x
    x = 2,089,416,650.46/38,650.60
  6. Step 6: Final answer
    x = 54,059.10

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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.