Home / 85,516.09-117,998.98-47,783.05

Finding the Fourth Proportional to 85,516.09, 117,998.98 and 47,783.05

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Solution

The fourth proportional to 85,516.09, 117,998.98 and 47,783.05 is: 65,933.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,516.09 : 117,998.98 = 47,783.05 : x
  2. Step 2: Convert to fraction form
    85,516.09/117,998.98 = 47,783.05/x
  3. Step 3: Cross multiply
    85,516.09x = 117,998.98 × 47,783.05
  4. Step 4: Simplify right side
    85,516.09x = 5,638,351,161.29
  5. Step 5: Solve for x
    x = 5,638,351,161.29/85,516.09
  6. Step 6: Final answer
    x = 65,933.22

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Double scale
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Similar ratio
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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.