Home / 85,526.10-128,198.43-32,912.82

Finding the Fourth Proportional to 85,526.10, 128,198.43 and 32,912.82

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Solution

The fourth proportional to 85,526.10, 128,198.43 and 32,912.82 is: 49,334.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,526.10 : 128,198.43 = 32,912.82 : x
  2. Step 2: Convert to fraction form
    85,526.10/128,198.43 = 32,912.82/x
  3. Step 3: Cross multiply
    85,526.10x = 128,198.43 × 32,912.82
  4. Step 4: Simplify right side
    85,526.10x = 4,219,371,850.87
  5. Step 5: Solve for x
    x = 4,219,371,850.87/85,526.10
  6. Step 6: Final answer
    x = 49,334.32

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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.