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Finding the Fourth Proportional to 85,107.10, 127,617.90 and 49,580.14

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Solution

The fourth proportional to 85,107.10, 127,617.90 and 49,580.14 is: 74,345.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,107.10 : 127,617.90 = 49,580.14 : x
  2. Step 2: Convert to fraction form
    85,107.10/127,617.90 = 49,580.14/x
  3. Step 3: Cross multiply
    85,107.10x = 127,617.90 × 49,580.14
  4. Step 4: Simplify right side
    85,107.10x = 6,327,313,348.51
  5. Step 5: Solve for x
    x = 6,327,313,348.51/85,107.10
  6. Step 6: Final answer
    x = 74,345.31

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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.