Home / 52,556.72-78,788.20-19,269.02

Finding the Fourth Proportional to 52,556.72, 78,788.20 and 19,269.02

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Solution

The fourth proportional to 52,556.72, 78,788.20 and 19,269.02 is: 28,886.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,556.72 : 78,788.20 = 19,269.02 : x
  2. Step 2: Convert to fraction form
    52,556.72/78,788.20 = 19,269.02/x
  3. Step 3: Cross multiply
    52,556.72x = 78,788.20 × 19,269.02
  4. Step 4: Simplify right side
    52,556.72x = 1,518,171,007.62
  5. Step 5: Solve for x
    x = 1,518,171,007.62/52,556.72
  6. Step 6: Final answer
    x = 28,886.33

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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.