Home / 82,476.38-113,868.92-56,679.36

Finding the Fourth Proportional to 82,476.38, 113,868.92 and 56,679.36

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Solution

The fourth proportional to 82,476.38, 113,868.92 and 56,679.36 is: 78,252.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,476.38 : 113,868.92 = 56,679.36 : x
  2. Step 2: Convert to fraction form
    82,476.38/113,868.92 = 56,679.36/x
  3. Step 3: Cross multiply
    82,476.38x = 113,868.92 × 56,679.36
  4. Step 4: Simplify right side
    82,476.38x = 6,454,017,509.49
  5. Step 5: Solve for x
    x = 6,454,017,509.49/82,476.38
  6. Step 6: Final answer
    x = 78,252.92

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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.