Home / 89,985.12-134,974.32-27,654

Finding the Fourth Proportional to 89,985.12, 134,974.32 and 27,654

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Solution

The fourth proportional to 89,985.12, 134,974.32 and 27,654 is: 41,479.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,985.12 : 134,974.32 = 27,654 : x
  2. Step 2: Convert to fraction form
    89,985.12/134,974.32 = 27,654/x
  3. Step 3: Cross multiply
    89,985.12x = 134,974.32 × 27,654
  4. Step 4: Simplify right side
    89,985.12x = 3,732,579,845.28
  5. Step 5: Solve for x
    x = 3,732,579,845.28/89,985.12
  6. Step 6: Final answer
    x = 41,479.97

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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.