Home / 89,062.46-122,989.44-57,286.52

Finding the Fourth Proportional to 89,062.46, 122,989.44 and 57,286.52

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Solution

The fourth proportional to 89,062.46, 122,989.44 and 57,286.52 is: 79,108.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,062.46 : 122,989.44 = 57,286.52 : x
  2. Step 2: Convert to fraction form
    89,062.46/122,989.44 = 57,286.52/x
  3. Step 3: Cross multiply
    89,062.46x = 122,989.44 × 57,286.52
  4. Step 4: Simplify right side
    89,062.46x = 7,045,637,014.35
  5. Step 5: Solve for x
    x = 7,045,637,014.35/89,062.46
  6. Step 6: Final answer
    x = 79,108.94

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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.