Home / 69,986.78-96,583.20-39,360.46

Finding the Fourth Proportional to 69,986.78, 96,583.20 and 39,360.46

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Solution

The fourth proportional to 69,986.78, 96,583.20 and 39,360.46 is: 54,318.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,986.78 : 96,583.20 = 39,360.46 : x
  2. Step 2: Convert to fraction form
    69,986.78/96,583.20 = 39,360.46/x
  3. Step 3: Cross multiply
    69,986.78x = 96,583.20 × 39,360.46
  4. Step 4: Simplify right side
    69,986.78x = 3,801,558,938.81
  5. Step 5: Solve for x
    x = 3,801,558,938.81/69,986.78
  6. Step 6: Final answer
    x = 54,318.25

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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.