Home / 81,338.58-112,214.16-51,114.24

Finding the Fourth Proportional to 81,338.58, 112,214.16 and 51,114.24

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Solution

The fourth proportional to 81,338.58, 112,214.16 and 51,114.24 is: 70,516.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,338.58 : 112,214.16 = 51,114.24 : x
  2. Step 2: Convert to fraction form
    81,338.58/112,214.16 = 51,114.24/x
  3. Step 3: Cross multiply
    81,338.58x = 112,214.16 × 51,114.24
  4. Step 4: Simplify right side
    81,338.58x = 5,735,741,505.64
  5. Step 5: Solve for x
    x = 5,735,741,505.64/81,338.58
  6. Step 6: Final answer
    x = 70,516.86

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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.