Home / 81,305.36-112,214.12-51,094.79

Finding the Fourth Proportional to 81,305.36, 112,214.12 and 51,094.79

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Solution

The fourth proportional to 81,305.36, 112,214.12 and 51,094.79 is: 70,518.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,305.36 : 112,214.12 = 51,094.79 : x
  2. Step 2: Convert to fraction form
    81,305.36/112,214.12 = 51,094.79/x
  3. Step 3: Cross multiply
    81,305.36x = 112,214.12 × 51,094.79
  4. Step 4: Simplify right side
    81,305.36x = 5,733,556,896.43
  5. Step 5: Solve for x
    x = 5,733,556,896.43/81,305.36
  6. Step 6: Final answer
    x = 70,518.81

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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.