Home / 54,411.16-81,660.48-28,123.60

Finding the Fourth Proportional to 54,411.16, 81,660.48 and 28,123.60

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Solution

The fourth proportional to 54,411.16, 81,660.48 and 28,123.60 is: 42,208.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,411.16 : 81,660.48 = 28,123.60 : x
  2. Step 2: Convert to fraction form
    54,411.16/81,660.48 = 28,123.60/x
  3. Step 3: Cross multiply
    54,411.16x = 81,660.48 × 28,123.60
  4. Step 4: Simplify right side
    54,411.16x = 2,296,586,675.33
  5. Step 5: Solve for x
    x = 2,296,586,675.33/54,411.16
  6. Step 6: Final answer
    x = 42,208.01

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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.