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Finding the Fourth Proportional to 63,297.30, 87,350.12 and 36,430

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Solution

The fourth proportional to 63,297.30, 87,350.12 and 36,430 is: 50,273.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,297.30 : 87,350.12 = 36,430 : x
  2. Step 2: Convert to fraction form
    63,297.30/87,350.12 = 36,430/x
  3. Step 3: Cross multiply
    63,297.30x = 87,350.12 × 36,430
  4. Step 4: Simplify right side
    63,297.30x = 3,182,164,871.60
  5. Step 5: Solve for x
    x = 3,182,164,871.60/63,297.30
  6. Step 6: Final answer
    x = 50,273.31

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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.