Home / 86,554.22-129,845.90-39,805.88

Finding the Fourth Proportional to 86,554.22, 129,845.90 and 39,805.88

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Solution

The fourth proportional to 86,554.22, 129,845.90 and 39,805.88 is: 59,715.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,554.22 : 129,845.90 = 39,805.88 : x
  2. Step 2: Convert to fraction form
    86,554.22/129,845.90 = 39,805.88/x
  3. Step 3: Cross multiply
    86,554.22x = 129,845.90 × 39,805.88
  4. Step 4: Simplify right side
    86,554.22x = 5,168,629,764.18
  5. Step 5: Solve for x
    x = 5,168,629,764.18/86,554.22
  6. Step 6: Final answer
    x = 59,715.52

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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.