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Finding the Fourth Proportional to 46.61, 64.36 and 41.43

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Solution

The fourth proportional to 46.61, 64.36 and 41.43 is: 57.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.61 : 64.36 = 41.43 : x
  2. Step 2: Convert to fraction form
    46.61/64.36 = 41.43/x
  3. Step 3: Cross multiply
    46.61x = 64.36 × 41.43
  4. Step 4: Simplify right side
    46.61x = 2,666.43
  5. Step 5: Solve for x
    x = 2,666.43/46.61
  6. Step 6: Final answer
    x = 57.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.