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Finding the Fourth Proportional to 46.10, 68.85 and 39.26

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Solution

The fourth proportional to 46.10, 68.85 and 39.26 is: 58.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.10 : 68.85 = 39.26 : x
  2. Step 2: Convert to fraction form
    46.10/68.85 = 39.26/x
  3. Step 3: Cross multiply
    46.10x = 68.85 × 39.26
  4. Step 4: Simplify right side
    46.10x = 2,703.22
  5. Step 5: Solve for x
    x = 2,703.22/46.10
  6. Step 6: Final answer
    x = 58.64

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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.