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Finding the Fourth Proportional to 85,873.56, 118,503.97 and 48,147.81

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Solution

The fourth proportional to 85,873.56, 118,503.97 and 48,147.81 is: 66,443.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,873.56 : 118,503.97 = 48,147.81 : x
  2. Step 2: Convert to fraction form
    85,873.56/118,503.97 = 48,147.81/x
  3. Step 3: Cross multiply
    85,873.56x = 118,503.97 × 48,147.81
  4. Step 4: Simplify right side
    85,873.56x = 5,705,706,631.81
  5. Step 5: Solve for x
    x = 5,705,706,631.81/85,873.56
  6. Step 6: Final answer
    x = 66,443.11

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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.