Home / 81,336.24-112,314.06-51,171.84

Finding the Fourth Proportional to 81,336.24, 112,314.06 and 51,171.84

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Solution

The fourth proportional to 81,336.24, 112,314.06 and 51,171.84 is: 70,661.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,336.24 : 112,314.06 = 51,171.84 : x
  2. Step 2: Convert to fraction form
    81,336.24/112,314.06 = 51,171.84/x
  3. Step 3: Cross multiply
    81,336.24x = 112,314.06 × 51,171.84
  4. Step 4: Simplify right side
    81,336.24x = 5,747,317,108.07
  5. Step 5: Solve for x
    x = 5,747,317,108.07/81,336.24
  6. Step 6: Final answer
    x = 70,661.21

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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.