Home / 53,840.56-80,770.92-18,779.44

Finding the Fourth Proportional to 53,840.56, 80,770.92 and 18,779.44

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Solution

The fourth proportional to 53,840.56, 80,770.92 and 18,779.44 is: 28,172.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,840.56 : 80,770.92 = 18,779.44 : x
  2. Step 2: Convert to fraction form
    53,840.56/80,770.92 = 18,779.44/x
  3. Step 3: Cross multiply
    53,840.56x = 80,770.92 × 18,779.44
  4. Step 4: Simplify right side
    53,840.56x = 1,516,832,645.88
  5. Step 5: Solve for x
    x = 1,516,832,645.88/53,840.56
  6. Step 6: Final answer
    x = 28,172.68

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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.