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Finding the Fourth Proportional to 86,044, 118,689.24 and 54,157.54

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Solution

The fourth proportional to 86,044, 118,689.24 and 54,157.54 is: 74,705.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,044 : 118,689.24 = 54,157.54 : x
  2. Step 2: Convert to fraction form
    86,044/118,689.24 = 54,157.54/x
  3. Step 3: Cross multiply
    86,044x = 118,689.24 × 54,157.54
  4. Step 4: Simplify right side
    86,044x = 6,427,917,262.87
  5. Step 5: Solve for x
    x = 6,427,917,262.87/86,044
  6. Step 6: Final answer
    x = 74,705.00

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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.