Home / 82,123.60-113,331.09-51,922.54

Finding the Fourth Proportional to 82,123.60, 113,331.09 and 51,922.54

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Solution

The fourth proportional to 82,123.60, 113,331.09 and 51,922.54 is: 71,653.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,123.60 : 113,331.09 = 51,922.54 : x
  2. Step 2: Convert to fraction form
    82,123.60/113,331.09 = 51,922.54/x
  3. Step 3: Cross multiply
    82,123.60x = 113,331.09 × 51,922.54
  4. Step 4: Simplify right side
    82,123.60x = 5,884,438,053.77
  5. Step 5: Solve for x
    x = 5,884,438,053.77/82,123.60
  6. Step 6: Final answer
    x = 71,653.44

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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.