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Finding the Fourth Proportional to 84,871.12, 127,305.87 and 51,600.37

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Solution

The fourth proportional to 84,871.12, 127,305.87 and 51,600.37 is: 77,400.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,871.12 : 127,305.87 = 51,600.37 : x
  2. Step 2: Convert to fraction form
    84,871.12/127,305.87 = 51,600.37/x
  3. Step 3: Cross multiply
    84,871.12x = 127,305.87 × 51,600.37
  4. Step 4: Simplify right side
    84,871.12x = 6,569,029,737.17
  5. Step 5: Solve for x
    x = 6,569,029,737.17/84,871.12
  6. Step 6: Final answer
    x = 77,400.06

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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.