Home / 74,088.57-102,238.31-40,548.09

Finding the Fourth Proportional to 74,088.57, 102,238.31 and 40,548.09

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Solution

The fourth proportional to 74,088.57, 102,238.31 and 40,548.09 is: 55,954.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,088.57 : 102,238.31 = 40,548.09 : x
  2. Step 2: Convert to fraction form
    74,088.57/102,238.31 = 40,548.09/x
  3. Step 3: Cross multiply
    74,088.57x = 102,238.31 × 40,548.09
  4. Step 4: Simplify right side
    74,088.57x = 4,145,567,992.59
  5. Step 5: Solve for x
    x = 4,145,567,992.59/74,088.57
  6. Step 6: Final answer
    x = 55,954.22

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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.