Home / 85,314.21-117,732.81-47,074.11

Finding the Fourth Proportional to 85,314.21, 117,732.81 and 47,074.11

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Solution

The fourth proportional to 85,314.21, 117,732.81 and 47,074.11 is: 64,961.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,314.21 : 117,732.81 = 47,074.11 : x
  2. Step 2: Convert to fraction form
    85,314.21/117,732.81 = 47,074.11/x
  3. Step 3: Cross multiply
    85,314.21x = 117,732.81 × 47,074.11
  4. Step 4: Simplify right side
    85,314.21x = 5,542,167,248.55
  5. Step 5: Solve for x
    x = 5,542,167,248.55/85,314.21
  6. Step 6: Final answer
    x = 64,961.83

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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.