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Finding the Fourth Proportional to 85,127.00, 127,706.90 and 28,964.84

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Solution

The fourth proportional to 85,127.00, 127,706.90 and 28,964.84 is: 43,452.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,127.00 : 127,706.90 = 28,964.84 : x
  2. Step 2: Convert to fraction form
    85,127.00/127,706.90 = 28,964.84/x
  3. Step 3: Cross multiply
    85,127.00x = 127,706.90 × 28,964.84
  4. Step 4: Simplify right side
    85,127.00x = 3,699,009,142.04
  5. Step 5: Solve for x
    x = 3,699,009,142.04/85,127.00
  6. Step 6: Final answer
    x = 43,452.83

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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.