Home / 89,554.06-123,667.60-57,777.58

Finding the Fourth Proportional to 89,554.06, 123,667.60 and 57,777.58

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Solution

The fourth proportional to 89,554.06, 123,667.60 and 57,777.58 is: 79,786.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,554.06 : 123,667.60 = 57,777.58 : x
  2. Step 2: Convert to fraction form
    89,554.06/123,667.60 = 57,777.58/x
  3. Step 3: Cross multiply
    89,554.06x = 123,667.60 × 57,777.58
  4. Step 4: Simplify right side
    89,554.06x = 7,145,214,652.41
  5. Step 5: Solve for x
    x = 7,145,214,652.41/89,554.06
  6. Step 6: Final answer
    x = 79,786.61

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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.