Home / 68,111.57-102,184.64-21,364.85

Finding the Fourth Proportional to 68,111.57, 102,184.64 and 21,364.85

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Solution

The fourth proportional to 68,111.57, 102,184.64 and 21,364.85 is: 32,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,111.57 : 102,184.64 = 21,364.85 : x
  2. Step 2: Convert to fraction form
    68,111.57/102,184.64 = 21,364.85/x
  3. Step 3: Cross multiply
    68,111.57x = 102,184.64 × 21,364.85
  4. Step 4: Simplify right side
    68,111.57x = 2,183,159,399.08
  5. Step 5: Solve for x
    x = 2,183,159,399.08/68,111.57
  6. Step 6: Final answer
    x = 32,052.70

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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.