Home / 81,822.76-112,859.88-53,091.08

Finding the Fourth Proportional to 81,822.76, 112,859.88 and 53,091.08

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Solution

The fourth proportional to 81,822.76, 112,859.88 and 53,091.08 is: 73,229.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,822.76 : 112,859.88 = 53,091.08 : x
  2. Step 2: Convert to fraction form
    81,822.76/112,859.88 = 53,091.08/x
  3. Step 3: Cross multiply
    81,822.76x = 112,859.88 × 53,091.08
  4. Step 4: Simplify right side
    81,822.76x = 5,991,852,917.87
  5. Step 5: Solve for x
    x = 5,991,852,917.87/81,822.76
  6. Step 6: Final answer
    x = 73,229.66

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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.