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Finding the Fourth Proportional to 65,629.68, 90,537.44 and 42,958.68

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Solution

The fourth proportional to 65,629.68, 90,537.44 and 42,958.68 is: 59,262.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,629.68 : 90,537.44 = 42,958.68 : x
  2. Step 2: Convert to fraction form
    65,629.68/90,537.44 = 42,958.68/x
  3. Step 3: Cross multiply
    65,629.68x = 90,537.44 × 42,958.68
  4. Step 4: Simplify right side
    65,629.68x = 3,889,368,912.98
  5. Step 5: Solve for x
    x = 3,889,368,912.98/65,629.68
  6. Step 6: Final answer
    x = 59,262.35

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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.