Home / 54,461.28-81,696.95-21,183.87

Finding the Fourth Proportional to 54,461.28, 81,696.95 and 21,183.87

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Solution

The fourth proportional to 54,461.28, 81,696.95 and 21,183.87 is: 31,777.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,461.28 : 81,696.95 = 21,183.87 : x
  2. Step 2: Convert to fraction form
    54,461.28/81,696.95 = 21,183.87/x
  3. Step 3: Cross multiply
    54,461.28x = 81,696.95 × 21,183.87
  4. Step 4: Simplify right side
    54,461.28x = 1,730,657,106.75
  5. Step 5: Solve for x
    x = 1,730,657,106.75/54,461.28
  6. Step 6: Final answer
    x = 31,777.76

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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.