Home / 81,049.06-111,847.80-45,239.05

Finding the Fourth Proportional to 81,049.06, 111,847.80 and 45,239.05

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Solution

The fourth proportional to 81,049.06, 111,847.80 and 45,239.05 is: 62,429.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,049.06 : 111,847.80 = 45,239.05 : x
  2. Step 2: Convert to fraction form
    81,049.06/111,847.80 = 45,239.05/x
  3. Step 3: Cross multiply
    81,049.06x = 111,847.80 × 45,239.05
  4. Step 4: Simplify right side
    81,049.06x = 5,059,888,216.59
  5. Step 5: Solve for x
    x = 5,059,888,216.59/81,049.06
  6. Step 6: Final answer
    x = 62,429.94

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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.