Home / 66,132.36-99,198.45-19,385.19

Finding the Fourth Proportional to 66,132.36, 99,198.45 and 19,385.19

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Solution

The fourth proportional to 66,132.36, 99,198.45 and 19,385.19 is: 29,077.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,132.36 : 99,198.45 = 19,385.19 : x
  2. Step 2: Convert to fraction form
    66,132.36/99,198.45 = 19,385.19/x
  3. Step 3: Cross multiply
    66,132.36x = 99,198.45 × 19,385.19
  4. Step 4: Simplify right side
    66,132.36x = 1,922,980,800.96
  5. Step 5: Solve for x
    x = 1,922,980,800.96/66,132.36
  6. Step 6: Final answer
    x = 29,077.76

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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.