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Finding the Fourth Proportional to 88,090.44, 121,570.80 and 49,850

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Solution

The fourth proportional to 88,090.44, 121,570.80 and 49,850 is: 68,796.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,090.44 : 121,570.80 = 49,850 : x
  2. Step 2: Convert to fraction form
    88,090.44/121,570.80 = 49,850/x
  3. Step 3: Cross multiply
    88,090.44x = 121,570.80 × 49,850
  4. Step 4: Simplify right side
    88,090.44x = 6,060,304,380
  5. Step 5: Solve for x
    x = 6,060,304,380/88,090.44
  6. Step 6: Final answer
    x = 68,796.39

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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.