Home / 81,389.81-122,083.91-22,225.49

Finding the Fourth Proportional to 81,389.81, 122,083.91 and 22,225.49

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Solution

The fourth proportional to 81,389.81, 122,083.91 and 22,225.49 is: 33,338.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,389.81 : 122,083.91 = 22,225.49 : x
  2. Step 2: Convert to fraction form
    81,389.81/122,083.91 = 22,225.49/x
  3. Step 3: Cross multiply
    81,389.81x = 122,083.91 × 22,225.49
  4. Step 4: Simplify right side
    81,389.81x = 2,713,374,540.48
  5. Step 5: Solve for x
    x = 2,713,374,540.48/81,389.81
  6. Step 6: Final answer
    x = 33,338.01

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1.5x scale

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.