Home / 84,046.12-126,227.58-77,111.08

Finding the Fourth Proportional to 84,046.12, 126,227.58 and 77,111.08

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Solution

The fourth proportional to 84,046.12, 126,227.58 and 77,111.08 is: 115,811.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,046.12 : 126,227.58 = 77,111.08 : x
  2. Step 2: Convert to fraction form
    84,046.12/126,227.58 = 77,111.08/x
  3. Step 3: Cross multiply
    84,046.12x = 126,227.58 × 77,111.08
  4. Step 4: Simplify right side
    84,046.12x = 9,733,545,019.59
  5. Step 5: Solve for x
    x = 9,733,545,019.59/84,046.12
  6. Step 6: Final answer
    x = 115,811.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.