Home / 81,914.40-122,919.38-34,526.61

Finding the Fourth Proportional to 81,914.40, 122,919.38 and 34,526.61

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Solution

The fourth proportional to 81,914.40, 122,919.38 and 34,526.61 is: 51,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,914.40 : 122,919.38 = 34,526.61 : x
  2. Step 2: Convert to fraction form
    81,914.40/122,919.38 = 34,526.61/x
  3. Step 3: Cross multiply
    81,914.40x = 122,919.38 × 34,526.61
  4. Step 4: Simplify right side
    81,914.40x = 4,243,989,322.07
  5. Step 5: Solve for x
    x = 4,243,989,322.07/81,914.40
  6. Step 6: Final answer
    x = 51,810.05

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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.