Home / 54,328.89-81,446.22-21,026.03

Finding the Fourth Proportional to 54,328.89, 81,446.22 and 21,026.03

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Solution

The fourth proportional to 54,328.89, 81,446.22 and 21,026.03 is: 31,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,328.89 : 81,446.22 = 21,026.03 : x
  2. Step 2: Convert to fraction form
    54,328.89/81,446.22 = 21,026.03/x
  3. Step 3: Cross multiply
    54,328.89x = 81,446.22 × 21,026.03
  4. Step 4: Simplify right side
    54,328.89x = 1,712,490,665.11
  5. Step 5: Solve for x
    x = 1,712,490,665.11/54,328.89
  6. Step 6: Final answer
    x = 31,520.81

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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.