Home / 82,021.14-113,217.06-51,000.66

Finding the Fourth Proportional to 82,021.14, 113,217.06 and 51,000.66

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Solution

The fourth proportional to 82,021.14, 113,217.06 and 51,000.66 is: 70,398.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,021.14 : 113,217.06 = 51,000.66 : x
  2. Step 2: Convert to fraction form
    82,021.14/113,217.06 = 51,000.66/x
  3. Step 3: Cross multiply
    82,021.14x = 113,217.06 × 51,000.66
  4. Step 4: Simplify right side
    82,021.14x = 5,774,144,783.26
  5. Step 5: Solve for x
    x = 5,774,144,783.26/82,021.14
  6. Step 6: Final answer
    x = 70,398.25

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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.