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Finding the Fourth Proportional to 61.56, 84.98 and 37

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Solution

The fourth proportional to 61.56, 84.98 and 37 is: 51.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.56 : 84.98 = 37 : x
  2. Step 2: Convert to fraction form
    61.56/84.98 = 37/x
  3. Step 3: Cross multiply
    61.56x = 84.98 × 37
  4. Step 4: Simplify right side
    61.56x = 3,144.26
  5. Step 5: Solve for x
    x = 3,144.26/61.56
  6. Step 6: Final answer
    x = 51.08

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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.