Home / 85,716.07-128,563.87-22,541.11

Finding the Fourth Proportional to 85,716.07, 128,563.87 and 22,541.11

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Solution

The fourth proportional to 85,716.07, 128,563.87 and 22,541.11 is: 33,808.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,716.07 : 128,563.87 = 22,541.11 : x
  2. Step 2: Convert to fraction form
    85,716.07/128,563.87 = 22,541.11/x
  3. Step 3: Cross multiply
    85,716.07x = 128,563.87 × 22,541.11
  4. Step 4: Simplify right side
    85,716.07x = 2,897,972,872.46
  5. Step 5: Solve for x
    x = 2,897,972,872.46/85,716.07
  6. Step 6: Final answer
    x = 33,808.98

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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.