Home / 66,105.09-91,224.51-35,889.81

Finding the Fourth Proportional to 66,105.09, 91,224.51 and 35,889.81

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Solution

The fourth proportional to 66,105.09, 91,224.51 and 35,889.81 is: 49,527.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,105.09 : 91,224.51 = 35,889.81 : x
  2. Step 2: Convert to fraction form
    66,105.09/91,224.51 = 35,889.81/x
  3. Step 3: Cross multiply
    66,105.09x = 91,224.51 × 35,889.81
  4. Step 4: Simplify right side
    66,105.09x = 3,274,029,875.12
  5. Step 5: Solve for x
    x = 3,274,029,875.12/66,105.09
  6. Step 6: Final answer
    x = 49,527.66

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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.