Home / 68,475.06-102,712.32-21,731.58

Finding the Fourth Proportional to 68,475.06, 102,712.32 and 21,731.58

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Solution

The fourth proportional to 68,475.06, 102,712.32 and 21,731.58 is: 32,597.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,475.06 : 102,712.32 = 21,731.58 : x
  2. Step 2: Convert to fraction form
    68,475.06/102,712.32 = 21,731.58/x
  3. Step 3: Cross multiply
    68,475.06x = 102,712.32 × 21,731.58
  4. Step 4: Simplify right side
    68,475.06x = 2,232,100,999.07
  5. Step 5: Solve for x
    x = 2,232,100,999.07/68,475.06
  6. Step 6: Final answer
    x = 32,597.28

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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.