Home / 68,496.02-102,744.21-21,109.58

Finding the Fourth Proportional to 68,496.02, 102,744.21 and 21,109.58

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Solution

The fourth proportional to 68,496.02, 102,744.21 and 21,109.58 is: 31,664.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,496.02 : 102,744.21 = 21,109.58 : x
  2. Step 2: Convert to fraction form
    68,496.02/102,744.21 = 21,109.58/x
  3. Step 3: Cross multiply
    68,496.02x = 102,744.21 × 21,109.58
  4. Step 4: Simplify right side
    68,496.02x = 2,168,887,071.26
  5. Step 5: Solve for x
    x = 2,168,887,071.26/68,496.02
  6. Step 6: Final answer
    x = 31,664.43

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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.