Home / 54,365.03-81,568.30-21,108.44

Finding the Fourth Proportional to 54,365.03, 81,568.30 and 21,108.44

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Solution

The fourth proportional to 54,365.03, 81,568.30 and 21,108.44 is: 31,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,365.03 : 81,568.30 = 21,108.44 : x
  2. Step 2: Convert to fraction form
    54,365.03/81,568.30 = 21,108.44/x
  3. Step 3: Cross multiply
    54,365.03x = 81,568.30 × 21,108.44
  4. Step 4: Simplify right side
    54,365.03x = 1,721,779,566.45
  5. Step 5: Solve for x
    x = 1,721,779,566.45/54,365.03
  6. Step 6: Final answer
    x = 31,670.72

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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.