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Finding the Fourth Proportional to 52,556.70, 78,835.05 and 15,620.70

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Solution

The fourth proportional to 52,556.70, 78,835.05 and 15,620.70 is: 23,431.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,556.70 : 78,835.05 = 15,620.70 : x
  2. Step 2: Convert to fraction form
    52,556.70/78,835.05 = 15,620.70/x
  3. Step 3: Cross multiply
    52,556.70x = 78,835.05 × 15,620.70
  4. Step 4: Simplify right side
    52,556.70x = 1,231,458,665.54
  5. Step 5: Solve for x
    x = 1,231,458,665.54/52,556.70
  6. Step 6: Final answer
    x = 23,431.05

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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.