Home / 81,006.76-111,813.06-51,216.04

Finding the Fourth Proportional to 81,006.76, 111,813.06 and 51,216.04

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Solution

The fourth proportional to 81,006.76, 111,813.06 and 51,216.04 is: 70,693.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,006.76 : 111,813.06 = 51,216.04 : x
  2. Step 2: Convert to fraction form
    81,006.76/111,813.06 = 51,216.04/x
  3. Step 3: Cross multiply
    81,006.76x = 111,813.06 × 51,216.04
  4. Step 4: Simplify right side
    81,006.76x = 5,726,622,153.48
  5. Step 5: Solve for x
    x = 5,726,622,153.48/81,006.76
  6. Step 6: Final answer
    x = 70,693.14

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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.