Home / 54,935.35-82,403.03-45,421.90

Finding the Fourth Proportional to 54,935.35, 82,403.03 and 45,421.90

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Solution

The fourth proportional to 54,935.35, 82,403.03 and 45,421.90 is: 68,132.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,935.35 : 82,403.03 = 45,421.90 : x
  2. Step 2: Convert to fraction form
    54,935.35/82,403.03 = 45,421.90/x
  3. Step 3: Cross multiply
    54,935.35x = 82,403.03 × 45,421.90
  4. Step 4: Simplify right side
    54,935.35x = 3,742,901,961.25
  5. Step 5: Solve for x
    x = 3,742,901,961.25/54,935.35
  6. Step 6: Final answer
    x = 68,132.85

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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.