Home / 69,647.14-96,112.07-39,431.68

Finding the Fourth Proportional to 69,647.14, 96,112.07 and 39,431.68

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Solution

The fourth proportional to 69,647.14, 96,112.07 and 39,431.68 is: 54,415.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,647.14 : 96,112.07 = 39,431.68 : x
  2. Step 2: Convert to fraction form
    69,647.14/96,112.07 = 39,431.68/x
  3. Step 3: Cross multiply
    69,647.14x = 96,112.07 × 39,431.68
  4. Step 4: Simplify right side
    69,647.14x = 3,789,860,098.81
  5. Step 5: Solve for x
    x = 3,789,860,098.81/69,647.14
  6. Step 6: Final answer
    x = 54,415.16

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1.5x scale

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.