Home / 68,534.34-102,812.31-21,797.70

Finding the Fourth Proportional to 68,534.34, 102,812.31 and 21,797.70

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Solution

The fourth proportional to 68,534.34, 102,812.31 and 21,797.70 is: 32,699.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,534.34 : 102,812.31 = 21,797.70 : x
  2. Step 2: Convert to fraction form
    68,534.34/102,812.31 = 21,797.70/x
  3. Step 3: Cross multiply
    68,534.34x = 102,812.31 × 21,797.70
  4. Step 4: Simplify right side
    68,534.34x = 2,241,071,889.69
  5. Step 5: Solve for x
    x = 2,241,071,889.69/68,534.34
  6. Step 6: Final answer
    x = 32,699.98

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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.