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Finding the Fourth Proportional to 85,082.55, 127,623.84 and 22,751.43

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Solution

The fourth proportional to 85,082.55, 127,623.84 and 22,751.43 is: 34,127.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,082.55 : 127,623.84 = 22,751.43 : x
  2. Step 2: Convert to fraction form
    85,082.55/127,623.84 = 22,751.43/x
  3. Step 3: Cross multiply
    85,082.55x = 127,623.84 × 22,751.43
  4. Step 4: Simplify right side
    85,082.55x = 2,903,624,862.09
  5. Step 5: Solve for x
    x = 2,903,624,862.09/85,082.55
  6. Step 6: Final answer
    x = 34,127.15

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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.