Home / 53,898.14-80,815.82-20,620.50

Finding the Fourth Proportional to 53,898.14, 80,815.82 and 20,620.50

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Solution

The fourth proportional to 53,898.14, 80,815.82 and 20,620.50 is: 30,918.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,898.14 : 80,815.82 = 20,620.50 : x
  2. Step 2: Convert to fraction form
    53,898.14/80,815.82 = 20,620.50/x
  3. Step 3: Cross multiply
    53,898.14x = 80,815.82 × 20,620.50
  4. Step 4: Simplify right side
    53,898.14x = 1,666,462,616.31
  5. Step 5: Solve for x
    x = 1,666,462,616.31/53,898.14
  6. Step 6: Final answer
    x = 30,918.74

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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.