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Finding the Fourth Proportional to 85,004.82, 117,240.75 and 54,795.06

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Solution

The fourth proportional to 85,004.82, 117,240.75 and 54,795.06 is: 75,574.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,004.82 : 117,240.75 = 54,795.06 : x
  2. Step 2: Convert to fraction form
    85,004.82/117,240.75 = 54,795.06/x
  3. Step 3: Cross multiply
    85,004.82x = 117,240.75 × 54,795.06
  4. Step 4: Simplify right side
    85,004.82x = 6,424,213,930.70
  5. Step 5: Solve for x
    x = 6,424,213,930.70/85,004.82
  6. Step 6: Final answer
    x = 75,574.70

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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.