Home / 81,114.96-111,937.48-45,305.49

Finding the Fourth Proportional to 81,114.96, 111,937.48 and 45,305.49

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Solution

The fourth proportional to 81,114.96, 111,937.48 and 45,305.49 is: 62,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,114.96 : 111,937.48 = 45,305.49 : x
  2. Step 2: Convert to fraction form
    81,114.96/111,937.48 = 45,305.49/x
  3. Step 3: Cross multiply
    81,114.96x = 111,937.48 × 45,305.49
  4. Step 4: Simplify right side
    81,114.96x = 5,071,382,380.77
  5. Step 5: Solve for x
    x = 5,071,382,380.77/81,114.96
  6. Step 6: Final answer
    x = 62,520.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.