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Finding the Fourth Proportional to 86,226, 118,998.72 and 48,503.04

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Solution

The fourth proportional to 86,226, 118,998.72 and 48,503.04 is: 66,938.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,226 : 118,998.72 = 48,503.04 : x
  2. Step 2: Convert to fraction form
    86,226/118,998.72 = 48,503.04/x
  3. Step 3: Cross multiply
    86,226x = 118,998.72 × 48,503.04
  4. Step 4: Simplify right side
    86,226x = 5,771,799,676.11
  5. Step 5: Solve for x
    x = 5,771,799,676.11/86,226
  6. Step 6: Final answer
    x = 66,938.04

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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.