Home / 81,791.06-112,863.05-45,486.63

Finding the Fourth Proportional to 81,791.06, 112,863.05 and 45,486.63

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Solution

The fourth proportional to 81,791.06, 112,863.05 and 45,486.63 is: 62,766.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,791.06 : 112,863.05 = 45,486.63 : x
  2. Step 2: Convert to fraction form
    81,791.06/112,863.05 = 45,486.63/x
  3. Step 3: Cross multiply
    81,791.06x = 112,863.05 × 45,486.63
  4. Step 4: Simplify right side
    81,791.06x = 5,133,759,568.59
  5. Step 5: Solve for x
    x = 5,133,759,568.59/81,791.06
  6. Step 6: Final answer
    x = 62,766.76

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1.5x scale

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.