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Finding the Fourth Proportional to 53.83, 74.48 and 46.94

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Solution

The fourth proportional to 53.83, 74.48 and 46.94 is: 64.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    53.83 : 74.48 = 46.94 : x
  2. Step 2: Convert to fraction form
    53.83/74.48 = 46.94/x
  3. Step 3: Cross multiply
    53.83x = 74.48 × 46.94
  4. Step 4: Simplify right side
    53.83x = 3,495.66
  5. Step 5: Solve for x
    x = 3,495.66/53.83
  6. Step 6: Final answer
    x = 64.94

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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.