Home / 81,917.40-123,005.70-59,885.40

Finding the Fourth Proportional to 81,917.40, 123,005.70 and 59,885.40

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Solution

The fourth proportional to 81,917.40, 123,005.70 and 59,885.40 is: 89,922.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,917.40 : 123,005.70 = 59,885.40 : x
  2. Step 2: Convert to fraction form
    81,917.40/123,005.70 = 59,885.40/x
  3. Step 3: Cross multiply
    81,917.40x = 123,005.70 × 59,885.40
  4. Step 4: Simplify right side
    81,917.40x = 7,366,245,546.78
  5. Step 5: Solve for x
    x = 7,366,245,546.78/81,917.40
  6. Step 6: Final answer
    x = 89,922.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.