Home / 65,901.08-90,965.67-40,059.54

Finding the Fourth Proportional to 65,901.08, 90,965.67 and 40,059.54

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Solution

The fourth proportional to 65,901.08, 90,965.67 and 40,059.54 is: 55,295.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,901.08 : 90,965.67 = 40,059.54 : x
  2. Step 2: Convert to fraction form
    65,901.08/90,965.67 = 40,059.54/x
  3. Step 3: Cross multiply
    65,901.08x = 90,965.67 × 40,059.54
  4. Step 4: Simplify right side
    65,901.08x = 3,644,042,895.99
  5. Step 5: Solve for x
    x = 3,644,042,895.99/65,901.08
  6. Step 6: Final answer
    x = 55,295.65

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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.