Home / 82,654.12-123,905.58-35,890.12

Finding the Fourth Proportional to 82,654.12, 123,905.58 and 35,890.12

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Solution

The fourth proportional to 82,654.12, 123,905.58 and 35,890.12 is: 53,802.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,654.12 : 123,905.58 = 35,890.12 : x
  2. Step 2: Convert to fraction form
    82,654.12/123,905.58 = 35,890.12/x
  3. Step 3: Cross multiply
    82,654.12x = 123,905.58 × 35,890.12
  4. Step 4: Simplify right side
    82,654.12x = 4,446,986,134.87
  5. Step 5: Solve for x
    x = 4,446,986,134.87/82,654.12
  6. Step 6: Final answer
    x = 53,802.35

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1.5x scale

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.