Home / 68,355.50-102,537.09-19,111.34

Finding the Fourth Proportional to 68,355.50, 102,537.09 and 19,111.34

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Solution

The fourth proportional to 68,355.50, 102,537.09 and 19,111.34 is: 28,668.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,355.50 : 102,537.09 = 19,111.34 : x
  2. Step 2: Convert to fraction form
    68,355.50/102,537.09 = 19,111.34/x
  3. Step 3: Cross multiply
    68,355.50x = 102,537.09 × 19,111.34
  4. Step 4: Simplify right side
    68,355.50x = 1,959,621,189.60
  5. Step 5: Solve for x
    x = 1,959,621,189.60/68,355.50
  6. Step 6: Final answer
    x = 28,668.08

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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.