Home / 67,072.75-92,560.40-38,780.26

Finding the Fourth Proportional to 67,072.75, 92,560.40 and 38,780.26

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Solution

The fourth proportional to 67,072.75, 92,560.40 and 38,780.26 is: 53,516.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,072.75 : 92,560.40 = 38,780.26 : x
  2. Step 2: Convert to fraction form
    67,072.75/92,560.40 = 38,780.26/x
  3. Step 3: Cross multiply
    67,072.75x = 92,560.40 × 38,780.26
  4. Step 4: Simplify right side
    67,072.75x = 3,589,516,183.80
  5. Step 5: Solve for x
    x = 3,589,516,183.80/67,072.75
  6. Step 6: Final answer
    x = 53,516.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.