Home / 68,266.16-102,399-30,839.36

Finding the Fourth Proportional to 68,266.16, 102,399 and 30,839.36

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Solution

The fourth proportional to 68,266.16, 102,399 and 30,839.36 is: 46,258.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,266.16 : 102,399 = 30,839.36 : x
  2. Step 2: Convert to fraction form
    68,266.16/102,399 = 30,839.36/x
  3. Step 3: Cross multiply
    68,266.16x = 102,399 × 30,839.36
  4. Step 4: Simplify right side
    68,266.16x = 3,157,919,624.64
  5. Step 5: Solve for x
    x = 3,157,919,624.64/68,266.16
  6. Step 6: Final answer
    x = 46,258.93

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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.