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Finding the Fourth Proportional to 45,380.40, 68,070.60 and 25,697.40

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Solution

The fourth proportional to 45,380.40, 68,070.60 and 25,697.40 is: 38,546.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,380.40 : 68,070.60 = 25,697.40 : x
  2. Step 2: Convert to fraction form
    45,380.40/68,070.60 = 25,697.40/x
  3. Step 3: Cross multiply
    45,380.40x = 68,070.60 × 25,697.40
  4. Step 4: Simplify right side
    45,380.40x = 1,749,237,436.44
  5. Step 5: Solve for x
    x = 1,749,237,436.44/45,380.40
  6. Step 6: Final answer
    x = 38,546.10

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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.