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Finding the Fourth Proportional to 52,365.25, 78,546.70 and 12,922.71

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Solution

The fourth proportional to 52,365.25, 78,546.70 and 12,922.71 is: 19,383.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,365.25 : 78,546.70 = 12,922.71 : x
  2. Step 2: Convert to fraction form
    52,365.25/78,546.70 = 12,922.71/x
  3. Step 3: Cross multiply
    52,365.25x = 78,546.70 × 12,922.71
  4. Step 4: Simplify right side
    52,365.25x = 1,015,036,225.56
  5. Step 5: Solve for x
    x = 1,015,036,225.56/52,365.25
  6. Step 6: Final answer
    x = 19,383.78

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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.