Home / 81,095.95-111,965.07-72,583.33

Finding the Fourth Proportional to 81,095.95, 111,965.07 and 72,583.33

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Solution

The fourth proportional to 81,095.95, 111,965.07 and 72,583.33 is: 100,212.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,095.95 : 111,965.07 = 72,583.33 : x
  2. Step 2: Convert to fraction form
    81,095.95/111,965.07 = 72,583.33/x
  3. Step 3: Cross multiply
    81,095.95x = 111,965.07 × 72,583.33
  4. Step 4: Simplify right side
    81,095.95x = 8,126,797,624.28
  5. Step 5: Solve for x
    x = 8,126,797,624.28/81,095.95
  6. Step 6: Final answer
    x = 100,212.13

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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.