Home / 89,185.12-133,776.32-21,717.80

Finding the Fourth Proportional to 89,185.12, 133,776.32 and 21,717.80

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Solution

The fourth proportional to 89,185.12, 133,776.32 and 21,717.80 is: 32,576.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,185.12 : 133,776.32 = 21,717.80 : x
  2. Step 2: Convert to fraction form
    89,185.12/133,776.32 = 21,717.80/x
  3. Step 3: Cross multiply
    89,185.12x = 133,776.32 × 21,717.80
  4. Step 4: Simplify right side
    89,185.12x = 2,905,327,362.50
  5. Step 5: Solve for x
    x = 2,905,327,362.50/89,185.12
  6. Step 6: Final answer
    x = 32,576.37

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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.