Home / 54,719.10-82,078.68-42,257.34

Finding the Fourth Proportional to 54,719.10, 82,078.68 and 42,257.34

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Solution

The fourth proportional to 54,719.10, 82,078.68 and 42,257.34 is: 63,386.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,719.10 : 82,078.68 = 42,257.34 : x
  2. Step 2: Convert to fraction form
    54,719.10/82,078.68 = 42,257.34/x
  3. Step 3: Cross multiply
    54,719.10x = 82,078.68 × 42,257.34
  4. Step 4: Simplify right side
    54,719.10x = 3,468,426,687.51
  5. Step 5: Solve for x
    x = 3,468,426,687.51/54,719.10
  6. Step 6: Final answer
    x = 63,386.03

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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.