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Finding the Fourth Proportional to 84,701, 127,051.50 and 35,453

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Solution

The fourth proportional to 84,701, 127,051.50 and 35,453 is: 53,179.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,701 : 127,051.50 = 35,453 : x
  2. Step 2: Convert to fraction form
    84,701/127,051.50 = 35,453/x
  3. Step 3: Cross multiply
    84,701x = 127,051.50 × 35,453
  4. Step 4: Simplify right side
    84,701x = 4,504,356,829.50
  5. Step 5: Solve for x
    x = 4,504,356,829.50/84,701
  6. Step 6: Final answer
    x = 53,179.50

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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.