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Finding the Fourth Proportional to 115,573, 159,490.74 and 62,581

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Solution

The fourth proportional to 115,573, 159,490.74 and 62,581 is: 86,361.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,573 : 159,490.74 = 62,581 : x
  2. Step 2: Convert to fraction form
    115,573/159,490.74 = 62,581/x
  3. Step 3: Cross multiply
    115,573x = 159,490.74 × 62,581
  4. Step 4: Simplify right side
    115,573x = 9,981,089,999.94
  5. Step 5: Solve for x
    x = 9,981,089,999.94/115,573
  6. Step 6: Final answer
    x = 86,361.78

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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.