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Finding the Fourth Proportional to 85,231.71, 117,621.32 and 47,501.91

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Solution

The fourth proportional to 85,231.71, 117,621.32 and 47,501.91 is: 65,553.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,231.71 : 117,621.32 = 47,501.91 : x
  2. Step 2: Convert to fraction form
    85,231.71/117,621.32 = 47,501.91/x
  3. Step 3: Cross multiply
    85,231.71x = 117,621.32 × 47,501.91
  4. Step 4: Simplify right side
    85,231.71x = 5,587,237,119.21
  5. Step 5: Solve for x
    x = 5,587,237,119.21/85,231.71
  6. Step 6: Final answer
    x = 65,553.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.