Home / 54,194.40-81,277.02-19,129.50

Finding the Fourth Proportional to 54,194.40, 81,277.02 and 19,129.50

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Solution

The fourth proportional to 54,194.40, 81,277.02 and 19,129.50 is: 28,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,194.40 : 81,277.02 = 19,129.50 : x
  2. Step 2: Convert to fraction form
    54,194.40/81,277.02 = 19,129.50/x
  3. Step 3: Cross multiply
    54,194.40x = 81,277.02 × 19,129.50
  4. Step 4: Simplify right side
    54,194.40x = 1,554,788,754.09
  5. Step 5: Solve for x
    x = 1,554,788,754.09/54,194.40
  6. Step 6: Final answer
    x = 28,689.10

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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.