Home / 54,090.88-81,126.96-14,638.78

Finding the Fourth Proportional to 54,090.88, 81,126.96 and 14,638.78

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Solution

The fourth proportional to 54,090.88, 81,126.96 and 14,638.78 is: 21,955.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,090.88 : 81,126.96 = 14,638.78 : x
  2. Step 2: Convert to fraction form
    54,090.88/81,126.96 = 14,638.78/x
  3. Step 3: Cross multiply
    54,090.88x = 81,126.96 × 14,638.78
  4. Step 4: Simplify right side
    54,090.88x = 1,187,599,719.51
  5. Step 5: Solve for x
    x = 1,187,599,719.51/54,090.88
  6. Step 6: Final answer
    x = 21,955.64

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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.