Home / 67,960.86-101,910.60-20,557.68

Finding the Fourth Proportional to 67,960.86, 101,910.60 and 20,557.68

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Solution

The fourth proportional to 67,960.86, 101,910.60 and 20,557.68 is: 30,827.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,960.86 : 101,910.60 = 20,557.68 : x
  2. Step 2: Convert to fraction form
    67,960.86/101,910.60 = 20,557.68/x
  3. Step 3: Cross multiply
    67,960.86x = 101,910.60 × 20,557.68
  4. Step 4: Simplify right side
    67,960.86x = 2,095,045,503.41
  5. Step 5: Solve for x
    x = 2,095,045,503.41/67,960.86
  6. Step 6: Final answer
    x = 30,827.24

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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.