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Finding the Fourth Proportional to 53,478.60, 80,217.90 and 27,234.60

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Solution

The fourth proportional to 53,478.60, 80,217.90 and 27,234.60 is: 40,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,478.60 : 80,217.90 = 27,234.60 : x
  2. Step 2: Convert to fraction form
    53,478.60/80,217.90 = 27,234.60/x
  3. Step 3: Cross multiply
    53,478.60x = 80,217.90 × 27,234.60
  4. Step 4: Simplify right side
    53,478.60x = 2,184,702,419.34
  5. Step 5: Solve for x
    x = 2,184,702,419.34/53,478.60
  6. Step 6: Final answer
    x = 40,851.90

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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.