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Finding the Fourth Proportional to 89,059, 133,471.86 and 49,634.68

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Solution

The fourth proportional to 89,059, 133,471.86 and 49,634.68 is: 74,387.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,059 : 133,471.86 = 49,634.68 : x
  2. Step 2: Convert to fraction form
    89,059/133,471.86 = 49,634.68/x
  3. Step 3: Cross multiply
    89,059x = 133,471.86 × 49,634.68
  4. Step 4: Simplify right side
    89,059x = 6,624,833,060.10
  5. Step 5: Solve for x
    x = 6,624,833,060.10/89,059
  6. Step 6: Final answer
    x = 74,387.01

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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.