Home / 81,986.87-113,142.27-46,177.52

Finding the Fourth Proportional to 81,986.87, 113,142.27 and 46,177.52

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Solution

The fourth proportional to 81,986.87, 113,142.27 and 46,177.52 is: 63,725.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,986.87 : 113,142.27 = 46,177.52 : x
  2. Step 2: Convert to fraction form
    81,986.87/113,142.27 = 46,177.52/x
  3. Step 3: Cross multiply
    81,986.87x = 113,142.27 × 46,177.52
  4. Step 4: Simplify right side
    81,986.87x = 5,224,628,870.06
  5. Step 5: Solve for x
    x = 5,224,628,870.06/81,986.87
  6. Step 6: Final answer
    x = 63,725.19

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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.