Home / 65,279.13-90,085.31-36,986.73

Finding the Fourth Proportional to 65,279.13, 90,085.31 and 36,986.73

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Solution

The fourth proportional to 65,279.13, 90,085.31 and 36,986.73 is: 51,041.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,279.13 : 90,085.31 = 36,986.73 : x
  2. Step 2: Convert to fraction form
    65,279.13/90,085.31 = 36,986.73/x
  3. Step 3: Cross multiply
    65,279.13x = 90,085.31 × 36,986.73
  4. Step 4: Simplify right side
    65,279.13x = 3,331,961,037.94
  5. Step 5: Solve for x
    x = 3,331,961,037.94/65,279.13
  6. Step 6: Final answer
    x = 51,041.75

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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.