Home / 54,669.15-82,003.68-42,207.30

Finding the Fourth Proportional to 54,669.15, 82,003.68 and 42,207.30

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Solution

The fourth proportional to 54,669.15, 82,003.68 and 42,207.30 is: 63,310.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,669.15 : 82,003.68 = 42,207.30 : x
  2. Step 2: Convert to fraction form
    54,669.15/82,003.68 = 42,207.30/x
  3. Step 3: Cross multiply
    54,669.15x = 82,003.68 × 42,207.30
  4. Step 4: Simplify right side
    54,669.15x = 3,461,153,922.86
  5. Step 5: Solve for x
    x = 3,461,153,922.86/54,669.15
  6. Step 6: Final answer
    x = 63,310.92

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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.