Home / 89,172.78-133,664.88-32,976.78

Finding the Fourth Proportional to 89,172.78, 133,664.88 and 32,976.78

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Solution

The fourth proportional to 89,172.78, 133,664.88 and 32,976.78 is: 49,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,172.78 : 133,664.88 = 32,976.78 : x
  2. Step 2: Convert to fraction form
    89,172.78/133,664.88 = 32,976.78/x
  3. Step 3: Cross multiply
    89,172.78x = 133,664.88 × 32,976.78
  4. Step 4: Simplify right side
    89,172.78x = 4,407,837,341.49
  5. Step 5: Solve for x
    x = 4,407,837,341.49/89,172.78
  6. Step 6: Final answer
    x = 49,430.30

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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.