Home / 81,033.28-111,818.64-50,808.94

Finding the Fourth Proportional to 81,033.28, 111,818.64 and 50,808.94

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Solution

The fourth proportional to 81,033.28, 111,818.64 and 50,808.94 is: 70,111.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,033.28 : 111,818.64 = 50,808.94 : x
  2. Step 2: Convert to fraction form
    81,033.28/111,818.64 = 50,808.94/x
  3. Step 3: Cross multiply
    81,033.28x = 111,818.64 × 50,808.94
  4. Step 4: Simplify right side
    81,033.28x = 5,681,386,570.64
  5. Step 5: Solve for x
    x = 5,681,386,570.64/81,033.28
  6. Step 6: Final answer
    x = 70,111.77

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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.