Home / 53,106.87-79,660.31-19,829.54

Finding the Fourth Proportional to 53,106.87, 79,660.31 and 19,829.54

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Solution

The fourth proportional to 53,106.87, 79,660.31 and 19,829.54 is: 29,744.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,106.87 : 79,660.31 = 19,829.54 : x
  2. Step 2: Convert to fraction form
    53,106.87/79,660.31 = 19,829.54/x
  3. Step 3: Cross multiply
    53,106.87x = 79,660.31 × 19,829.54
  4. Step 4: Simplify right side
    53,106.87x = 1,579,627,303.56
  5. Step 5: Solve for x
    x = 1,579,627,303.56/53,106.87
  6. Step 6: Final answer
    x = 29,744.31

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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.