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Finding the Fourth Proportional to 53.49, 73.81 and 35.98

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Solution

The fourth proportional to 53.49, 73.81 and 35.98 is: 49.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53.49 : 73.81 = 35.98 : x
  2. Step 2: Convert to fraction form
    53.49/73.81 = 35.98/x
  3. Step 3: Cross multiply
    53.49x = 73.81 × 35.98
  4. Step 4: Simplify right side
    53.49x = 2,655.54
  5. Step 5: Solve for x
    x = 2,655.54/53.49
  6. Step 6: Final answer
    x = 49.64

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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.