Home / 85,723.95-128,668.83-41,381.85

Finding the Fourth Proportional to 85,723.95, 128,668.83 and 41,381.85

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Solution

The fourth proportional to 85,723.95, 128,668.83 and 41,381.85 is: 62,112.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,723.95 : 128,668.83 = 41,381.85 : x
  2. Step 2: Convert to fraction form
    85,723.95/128,668.83 = 41,381.85/x
  3. Step 3: Cross multiply
    85,723.95x = 128,668.83 × 41,381.85
  4. Step 4: Simplify right side
    85,723.95x = 5,324,554,222.74
  5. Step 5: Solve for x
    x = 5,324,554,222.74/85,723.95
  6. Step 6: Final answer
    x = 62,112.80

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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.