Home / 53,005.05-79,511.45-19,725.10

Finding the Fourth Proportional to 53,005.05, 79,511.45 and 19,725.10

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Solution

The fourth proportional to 53,005.05, 79,511.45 and 19,725.10 is: 29,589.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,005.05 : 79,511.45 = 19,725.10 : x
  2. Step 2: Convert to fraction form
    53,005.05/79,511.45 = 19,725.10/x
  3. Step 3: Cross multiply
    53,005.05x = 79,511.45 × 19,725.10
  4. Step 4: Simplify right side
    53,005.05x = 1,568,371,004.99
  5. Step 5: Solve for x
    x = 1,568,371,004.99/53,005.05
  6. Step 6: Final answer
    x = 29,589.09

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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.