Home / 68,062.23-102,093.35-21,318.75

Finding the Fourth Proportional to 68,062.23, 102,093.35 and 21,318.75

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Solution

The fourth proportional to 68,062.23, 102,093.35 and 21,318.75 is: 31,978.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,062.23 : 102,093.35 = 21,318.75 : x
  2. Step 2: Convert to fraction form
    68,062.23/102,093.35 = 21,318.75/x
  3. Step 3: Cross multiply
    68,062.23x = 102,093.35 × 21,318.75
  4. Step 4: Simplify right side
    68,062.23x = 2,176,502,498.72
  5. Step 5: Solve for x
    x = 2,176,502,498.72/68,062.23
  6. Step 6: Final answer
    x = 31,978.13

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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.