Home / 54,354.45-81,539.78-19,291.17

Finding the Fourth Proportional to 54,354.45, 81,539.78 and 19,291.17

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Solution

The fourth proportional to 54,354.45, 81,539.78 and 19,291.17 is: 28,939.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,354.45 : 81,539.78 = 19,291.17 : x
  2. Step 2: Convert to fraction form
    54,354.45/81,539.78 = 19,291.17/x
  3. Step 3: Cross multiply
    54,354.45x = 81,539.78 × 19,291.17
  4. Step 4: Simplify right side
    54,354.45x = 1,572,997,661.29
  5. Step 5: Solve for x
    x = 1,572,997,661.29/54,354.45
  6. Step 6: Final answer
    x = 28,939.63

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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.