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Finding the Fourth Proportional to 45.93, 68.46 and 45.68

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Solution

The fourth proportional to 45.93, 68.46 and 45.68 is: 68.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.93 : 68.46 = 45.68 : x
  2. Step 2: Convert to fraction form
    45.93/68.46 = 45.68/x
  3. Step 3: Cross multiply
    45.93x = 68.46 × 45.68
  4. Step 4: Simplify right side
    45.93x = 3,126.74
  5. Step 5: Solve for x
    x = 3,126.74/45.93
  6. Step 6: Final answer
    x = 68.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.