Home / 45,968.21-68,956.27-12,688.28

Finding the Fourth Proportional to 45,968.21, 68,956.27 and 12,688.28

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Solution

The fourth proportional to 45,968.21, 68,956.27 and 12,688.28 is: 19,033.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,968.21 : 68,956.27 = 12,688.28 : x
  2. Step 2: Convert to fraction form
    45,968.21/68,956.27 = 12,688.28/x
  3. Step 3: Cross multiply
    45,968.21x = 68,956.27 × 12,688.28
  4. Step 4: Simplify right side
    45,968.21x = 874,936,085.01
  5. Step 5: Solve for x
    x = 874,936,085.01/45,968.21
  6. Step 6: Final answer
    x = 19,033.51

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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.