Home / 92,821.16-128,093.34-50,379.71

Finding the Fourth Proportional to 92,821.16, 128,093.34 and 50,379.71

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Solution

The fourth proportional to 92,821.16, 128,093.34 and 50,379.71 is: 69,524.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,821.16 : 128,093.34 = 50,379.71 : x
  2. Step 2: Convert to fraction form
    92,821.16/128,093.34 = 50,379.71/x
  3. Step 3: Cross multiply
    92,821.16x = 128,093.34 × 50,379.71
  4. Step 4: Simplify right side
    92,821.16x = 6,453,304,681.66
  5. Step 5: Solve for x
    x = 6,453,304,681.66/92,821.16
  6. Step 6: Final answer
    x = 69,524.07

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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.