Home / 82,238.64-123,357.51-19,909.14

Finding the Fourth Proportional to 82,238.64, 123,357.51 and 19,909.14

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Solution

The fourth proportional to 82,238.64, 123,357.51 and 19,909.14 is: 29,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,238.64 : 123,357.51 = 19,909.14 : x
  2. Step 2: Convert to fraction form
    82,238.64/123,357.51 = 19,909.14/x
  3. Step 3: Cross multiply
    82,238.64x = 123,357.51 × 19,909.14
  4. Step 4: Simplify right side
    82,238.64x = 2,455,941,936.64
  5. Step 5: Solve for x
    x = 2,455,941,936.64/82,238.64
  6. Step 6: Final answer
    x = 29,863.60

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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.