Home / 53,009.23-79,517.73-19,729.29

Finding the Fourth Proportional to 53,009.23, 79,517.73 and 19,729.29

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Solution

The fourth proportional to 53,009.23, 79,517.73 and 19,729.29 is: 29,595.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,009.23 : 79,517.73 = 19,729.29 : x
  2. Step 2: Convert to fraction form
    53,009.23/79,517.73 = 19,729.29/x
  3. Step 3: Cross multiply
    53,009.23x = 79,517.73 × 19,729.29
  4. Step 4: Simplify right side
    53,009.23x = 1,568,828,355.31
  5. Step 5: Solve for x
    x = 1,568,828,355.31/53,009.23
  6. Step 6: Final answer
    x = 29,595.38

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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.