Home / 68,111.07-102,183.89-21,364.35

Finding the Fourth Proportional to 68,111.07, 102,183.89 and 21,364.35

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Solution

The fourth proportional to 68,111.07, 102,183.89 and 21,364.35 is: 32,051.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,111.07 : 102,183.89 = 21,364.35 : x
  2. Step 2: Convert to fraction form
    68,111.07/102,183.89 = 21,364.35/x
  3. Step 3: Cross multiply
    68,111.07x = 102,183.89 × 21,364.35
  4. Step 4: Simplify right side
    68,111.07x = 2,183,092,283.50
  5. Step 5: Solve for x
    x = 2,183,092,283.50/68,111.07
  6. Step 6: Final answer
    x = 32,051.95

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1.5x scale

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.