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Finding the Fourth Proportional to 81,102.33, 121,653.43 and 59,055.95

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Solution

The fourth proportional to 81,102.33, 121,653.43 and 59,055.95 is: 88,583.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,102.33 : 121,653.43 = 59,055.95 : x
  2. Step 2: Convert to fraction form
    81,102.33/121,653.43 = 59,055.95/x
  3. Step 3: Cross multiply
    81,102.33x = 121,653.43 × 59,055.95
  4. Step 4: Simplify right side
    81,102.33x = 7,184,359,035.90
  5. Step 5: Solve for x
    x = 7,184,359,035.90/81,102.33
  6. Step 6: Final answer
    x = 88,583.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.