Home / 54,569.28-81,833.76-42,905.28

Finding the Fourth Proportional to 54,569.28, 81,833.76 and 42,905.28

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Solution

The fourth proportional to 54,569.28, 81,833.76 and 42,905.28 is: 64,342.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,569.28 : 81,833.76 = 42,905.28 : x
  2. Step 2: Convert to fraction form
    54,569.28/81,833.76 = 42,905.28/x
  3. Step 3: Cross multiply
    54,569.28x = 81,833.76 × 42,905.28
  4. Step 4: Simplify right side
    54,569.28x = 3,511,100,386.25
  5. Step 5: Solve for x
    x = 3,511,100,386.25/54,569.28
  6. Step 6: Final answer
    x = 64,342.07

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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.