Home / 57,996.85-86,970.67-20,566.35

Finding the Fourth Proportional to 57,996.85, 86,970.67 and 20,566.35

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Solution

The fourth proportional to 57,996.85, 86,970.67 and 20,566.35 is: 30,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,996.85 : 86,970.67 = 20,566.35 : x
  2. Step 2: Convert to fraction form
    57,996.85/86,970.67 = 20,566.35/x
  3. Step 3: Cross multiply
    57,996.85x = 86,970.67 × 20,566.35
  4. Step 4: Simplify right side
    57,996.85x = 1,788,669,238.95
  5. Step 5: Solve for x
    x = 1,788,669,238.95/57,996.85
  6. Step 6: Final answer
    x = 30,840.80

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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.