Home / 55,134.45-82,743.27-40,381.62

Finding the Fourth Proportional to 55,134.45, 82,743.27 and 40,381.62

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Solution

The fourth proportional to 55,134.45, 82,743.27 and 40,381.62 is: 60,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,134.45 : 82,743.27 = 40,381.62 : x
  2. Step 2: Convert to fraction form
    55,134.45/82,743.27 = 40,381.62/x
  3. Step 3: Cross multiply
    55,134.45x = 82,743.27 × 40,381.62
  4. Step 4: Simplify right side
    55,134.45x = 3,341,307,286.70
  5. Step 5: Solve for x
    x = 3,341,307,286.70/55,134.45
  6. Step 6: Final answer
    x = 60,602.90

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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.