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Finding the Fourth Proportional to 63,274.54, 87,314.48 and 34,978

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Solution

The fourth proportional to 63,274.54, 87,314.48 and 34,978 is: 48,267.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,274.54 : 87,314.48 = 34,978 : x
  2. Step 2: Convert to fraction form
    63,274.54/87,314.48 = 34,978/x
  3. Step 3: Cross multiply
    63,274.54x = 87,314.48 × 34,978
  4. Step 4: Simplify right side
    63,274.54x = 3,054,085,881.44
  5. Step 5: Solve for x
    x = 3,054,085,881.44/63,274.54
  6. Step 6: Final answer
    x = 48,267.22

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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.