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Finding the Fourth Proportional to 52,546.40, 78,704.40 and 45,634.40

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Solution

The fourth proportional to 52,546.40, 78,704.40 and 45,634.40 is: 68,351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,546.40 : 78,704.40 = 45,634.40 : x
  2. Step 2: Convert to fraction form
    52,546.40/78,704.40 = 45,634.40/x
  3. Step 3: Cross multiply
    52,546.40x = 78,704.40 × 45,634.40
  4. Step 4: Simplify right side
    52,546.40x = 3,591,628,071.36
  5. Step 5: Solve for x
    x = 3,591,628,071.36/52,546.40
  6. Step 6: Final answer
    x = 68,351.55

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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.