Home / 68,192.50-102,292.40-21,449.02

Finding the Fourth Proportional to 68,192.50, 102,292.40 and 21,449.02

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Solution

The fourth proportional to 68,192.50, 102,292.40 and 21,449.02 is: 32,174.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,192.50 : 102,292.40 = 21,449.02 : x
  2. Step 2: Convert to fraction form
    68,192.50/102,292.40 = 21,449.02/x
  3. Step 3: Cross multiply
    68,192.50x = 102,292.40 × 21,449.02
  4. Step 4: Simplify right side
    68,192.50x = 2,194,071,733.45
  5. Step 5: Solve for x
    x = 2,194,071,733.45/68,192.50
  6. Step 6: Final answer
    x = 32,174.68

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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.