Home / 81,986.11-113,141.21-46,176.72

Finding the Fourth Proportional to 81,986.11, 113,141.21 and 46,176.72

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Solution

The fourth proportional to 81,986.11, 113,141.21 and 46,176.72 is: 63,724.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,986.11 : 113,141.21 = 46,176.72 : x
  2. Step 2: Convert to fraction form
    81,986.11/113,141.21 = 46,176.72/x
  3. Step 3: Cross multiply
    81,986.11x = 113,141.21 × 46,176.72
  4. Step 4: Simplify right side
    81,986.11x = 5,224,489,319.47
  5. Step 5: Solve for x
    x = 5,224,489,319.47/81,986.11
  6. Step 6: Final answer
    x = 63,724.08

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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.