Home / 53,166.63-79,766.34-19,890.06

Finding the Fourth Proportional to 53,166.63, 79,766.34 and 19,890.06

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Solution

The fourth proportional to 53,166.63, 79,766.34 and 19,890.06 is: 29,841.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,166.63 : 79,766.34 = 19,890.06 : x
  2. Step 2: Convert to fraction form
    53,166.63/79,766.34 = 19,890.06/x
  3. Step 3: Cross multiply
    53,166.63x = 79,766.34 × 19,890.06
  4. Step 4: Simplify right side
    53,166.63x = 1,586,557,288.58
  5. Step 5: Solve for x
    x = 1,586,557,288.58/53,166.63
  6. Step 6: Final answer
    x = 29,841.22

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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.