Home / 66,801.13-100,178.06-19,406.36

Finding the Fourth Proportional to 66,801.13, 100,178.06 and 19,406.36

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Solution

The fourth proportional to 66,801.13, 100,178.06 and 19,406.36 is: 29,102.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,801.13 : 100,178.06 = 19,406.36 : x
  2. Step 2: Convert to fraction form
    66,801.13/100,178.06 = 19,406.36/x
  3. Step 3: Cross multiply
    66,801.13x = 100,178.06 × 19,406.36
  4. Step 4: Simplify right side
    66,801.13x = 1,944,091,447.95
  5. Step 5: Solve for x
    x = 1,944,091,447.95/66,801.13
  6. Step 6: Final answer
    x = 29,102.67

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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.