Home / 89,237.75-123,131.03-51,009.41

Finding the Fourth Proportional to 89,237.75, 123,131.03 and 51,009.41

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Solution

The fourth proportional to 89,237.75, 123,131.03 and 51,009.41 is: 70,383.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,237.75 : 123,131.03 = 51,009.41 : x
  2. Step 2: Convert to fraction form
    89,237.75/123,131.03 = 51,009.41/x
  3. Step 3: Cross multiply
    89,237.75x = 123,131.03 × 51,009.41
  4. Step 4: Simplify right side
    89,237.75x = 6,280,840,322.29
  5. Step 5: Solve for x
    x = 6,280,840,322.29/89,237.75
  6. Step 6: Final answer
    x = 70,383.23

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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.