Home / 66,935.03-100,386.94-19,540.16

Finding the Fourth Proportional to 66,935.03, 100,386.94 and 19,540.16

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Solution

The fourth proportional to 66,935.03, 100,386.94 and 19,540.16 is: 29,305.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,935.03 : 100,386.94 = 19,540.16 : x
  2. Step 2: Convert to fraction form
    66,935.03/100,386.94 = 19,540.16/x
  3. Step 3: Cross multiply
    66,935.03x = 100,386.94 × 19,540.16
  4. Step 4: Simplify right side
    66,935.03x = 1,961,576,869.51
  5. Step 5: Solve for x
    x = 1,961,576,869.51/66,935.03
  6. Step 6: Final answer
    x = 29,305.68

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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.