Home / 55,144.92-76,100.04-31,271.70

Finding the Fourth Proportional to 55,144.92, 76,100.04 and 31,271.70

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Solution

The fourth proportional to 55,144.92, 76,100.04 and 31,271.70 is: 43,154.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,144.92 : 76,100.04 = 31,271.70 : x
  2. Step 2: Convert to fraction form
    55,144.92/76,100.04 = 31,271.70/x
  3. Step 3: Cross multiply
    55,144.92x = 76,100.04 × 31,271.70
  4. Step 4: Simplify right side
    55,144.92x = 2,379,777,620.87
  5. Step 5: Solve for x
    x = 2,379,777,620.87/55,144.92
  6. Step 6: Final answer
    x = 43,154.97

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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.