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Finding the Fourth Proportional to 61,821.42, 85,333.68 and 36,327.34

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Solution

The fourth proportional to 61,821.42, 85,333.68 and 36,327.34 is: 50,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,821.42 : 85,333.68 = 36,327.34 : x
  2. Step 2: Convert to fraction form
    61,821.42/85,333.68 = 36,327.34/x
  3. Step 3: Cross multiply
    61,821.42x = 85,333.68 × 36,327.34
  4. Step 4: Simplify right side
    61,821.42x = 3,099,945,606.81
  5. Step 5: Solve for x
    x = 3,099,945,606.81/61,821.42
  6. Step 6: Final answer
    x = 50,143.55

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1.5x scale

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.