Home / 81,449.24-112,361.94-51,251.22

Finding the Fourth Proportional to 81,449.24, 112,361.94 and 51,251.22

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Solution

The fourth proportional to 81,449.24, 112,361.94 and 51,251.22 is: 70,702.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,449.24 : 112,361.94 = 51,251.22 : x
  2. Step 2: Convert to fraction form
    81,449.24/112,361.94 = 51,251.22/x
  3. Step 3: Cross multiply
    81,449.24x = 112,361.94 × 51,251.22
  4. Step 4: Simplify right side
    81,449.24x = 5,758,686,506.57
  5. Step 5: Solve for x
    x = 5,758,686,506.57/81,449.24
  6. Step 6: Final answer
    x = 70,702.77

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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.