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Finding the Fourth Proportional to 53.74, 73.98 and 44.32

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Solution

The fourth proportional to 53.74, 73.98 and 44.32 is: 61.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53.74 : 73.98 = 44.32 : x
  2. Step 2: Convert to fraction form
    53.74/73.98 = 44.32/x
  3. Step 3: Cross multiply
    53.74x = 73.98 × 44.32
  4. Step 4: Simplify right side
    53.74x = 3,278.79
  5. Step 5: Solve for x
    x = 3,278.79/53.74
  6. Step 6: Final answer
    x = 61.01

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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.