Home / 67,111.37-100,740-27,157.86

Finding the Fourth Proportional to 67,111.37, 100,740 and 27,157.86

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Solution

The fourth proportional to 67,111.37, 100,740 and 27,157.86 is: 40,766.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,111.37 : 100,740 = 27,157.86 : x
  2. Step 2: Convert to fraction form
    67,111.37/100,740 = 27,157.86/x
  3. Step 3: Cross multiply
    67,111.37x = 100,740 × 27,157.86
  4. Step 4: Simplify right side
    67,111.37x = 2,735,883,068.25
  5. Step 5: Solve for x
    x = 2,735,883,068.25/67,111.37
  6. Step 6: Final answer
    x = 40,766.31

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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.