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Finding the Fourth Proportional to 85,338.33, 117,765.81 and 49,039.34

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Solution

The fourth proportional to 85,338.33, 117,765.81 and 49,039.34 is: 67,673.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,338.33 : 117,765.81 = 49,039.34 : x
  2. Step 2: Convert to fraction form
    85,338.33/117,765.81 = 49,039.34/x
  3. Step 3: Cross multiply
    85,338.33x = 117,765.81 × 49,039.34
  4. Step 4: Simplify right side
    85,338.33x = 5,775,157,008.14
  5. Step 5: Solve for x
    x = 5,775,157,008.14/85,338.33
  6. Step 6: Final answer
    x = 67,673.66

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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.