Home / 81,986.68-113,139.39-46,175.95

Finding the Fourth Proportional to 81,986.68, 113,139.39 and 46,175.95

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Solution

The fourth proportional to 81,986.68, 113,139.39 and 46,175.95 is: 63,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,986.68 : 113,139.39 = 46,175.95 : x
  2. Step 2: Convert to fraction form
    81,986.68/113,139.39 = 46,175.95/x
  3. Step 3: Cross multiply
    81,986.68x = 113,139.39 × 46,175.95
  4. Step 4: Simplify right side
    81,986.68x = 5,224,318,815.67
  5. Step 5: Solve for x
    x = 5,224,318,815.67/81,986.68
  6. Step 6: Final answer
    x = 63,721.56

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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.