Home / 54,431.00-81,651.66-21,153.63

Finding the Fourth Proportional to 54,431.00, 81,651.66 and 21,153.63

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Solution

The fourth proportional to 54,431.00, 81,651.66 and 21,153.63 is: 31,732.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,431.00 : 81,651.66 = 21,153.63 : x
  2. Step 2: Convert to fraction form
    54,431.00/81,651.66 = 21,153.63/x
  3. Step 3: Cross multiply
    54,431.00x = 81,651.66 × 21,153.63
  4. Step 4: Simplify right side
    54,431.00x = 1,727,228,898.76
  5. Step 5: Solve for x
    x = 1,727,228,898.76/54,431.00
  6. Step 6: Final answer
    x = 31,732.45

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1.5x scale

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.