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Finding the Fourth Proportional to 35.48, 53.45 and 33.99

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Solution

The fourth proportional to 35.48, 53.45 and 33.99 is: 51.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.48 : 53.45 = 33.99 : x
  2. Step 2: Convert to fraction form
    35.48/53.45 = 33.99/x
  3. Step 3: Cross multiply
    35.48x = 53.45 × 33.99
  4. Step 4: Simplify right side
    35.48x = 1,816.60
  5. Step 5: Solve for x
    x = 1,816.60/35.48
  6. Step 6: Final answer
    x = 51.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.