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Finding the Fourth Proportional to 87,625.64, 120,963.74 and 51,322.04

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Solution

The fourth proportional to 87,625.64, 120,963.74 and 51,322.04 is: 70,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,625.64 : 120,963.74 = 51,322.04 : x
  2. Step 2: Convert to fraction form
    87,625.64/120,963.74 = 51,322.04/x
  3. Step 3: Cross multiply
    87,625.64x = 120,963.74 × 51,322.04
  4. Step 4: Simplify right side
    87,625.64x = 6,208,105,902.83
  5. Step 5: Solve for x
    x = 6,208,105,902.83/87,625.64
  6. Step 6: Final answer
    x = 70,848.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.