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Finding the Fourth Proportional to 85,832, 118,422.08 and 54,032.64

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Solution

The fourth proportional to 85,832, 118,422.08 and 54,032.64 is: 74,548.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,832 : 118,422.08 = 54,032.64 : x
  2. Step 2: Convert to fraction form
    85,832/118,422.08 = 54,032.64/x
  3. Step 3: Cross multiply
    85,832x = 118,422.08 × 54,032.64
  4. Step 4: Simplify right side
    85,832x = 6,398,657,616.69
  5. Step 5: Solve for x
    x = 6,398,657,616.69/85,832
  6. Step 6: Final answer
    x = 74,548.63

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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.