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Finding the Fourth Proportional to 85,262.94, 117,663.12 and 47,538.54

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Solution

The fourth proportional to 85,262.94, 117,663.12 and 47,538.54 is: 65,603.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,262.94 : 117,663.12 = 47,538.54 : x
  2. Step 2: Convert to fraction form
    85,262.94/117,663.12 = 47,538.54/x
  3. Step 3: Cross multiply
    85,262.94x = 117,663.12 × 47,538.54
  4. Step 4: Simplify right side
    85,262.94x = 5,593,532,936.64
  5. Step 5: Solve for x
    x = 5,593,532,936.64/85,262.94
  6. Step 6: Final answer
    x = 65,603.33

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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.