Home / 89,255.15-133,817.11-42,540.83

Finding the Fourth Proportional to 89,255.15, 133,817.11 and 42,540.83

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Solution

The fourth proportional to 89,255.15, 133,817.11 and 42,540.83 is: 63,779.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,255.15 : 133,817.11 = 42,540.83 : x
  2. Step 2: Convert to fraction form
    89,255.15/133,817.11 = 42,540.83/x
  3. Step 3: Cross multiply
    89,255.15x = 133,817.11 × 42,540.83
  4. Step 4: Simplify right side
    89,255.15x = 5,692,690,653.98
  5. Step 5: Solve for x
    x = 5,692,690,653.98/89,255.15
  6. Step 6: Final answer
    x = 63,779.97

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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.