Home / 54,430.77-81,651.32-21,153.41

Finding the Fourth Proportional to 54,430.77, 81,651.32 and 21,153.41

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Solution

The fourth proportional to 54,430.77, 81,651.32 and 21,153.41 is: 31,732.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,430.77 : 81,651.32 = 21,153.41 : x
  2. Step 2: Convert to fraction form
    54,430.77/81,651.32 = 21,153.41/x
  3. Step 3: Cross multiply
    54,430.77x = 81,651.32 × 21,153.41
  4. Step 4: Simplify right side
    54,430.77x = 1,727,203,839.48
  5. Step 5: Solve for x
    x = 1,727,203,839.48/54,430.77
  6. Step 6: Final answer
    x = 31,732.12

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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.