Home / 82,253.36-123,380.04-47,215.28

Finding the Fourth Proportional to 82,253.36, 123,380.04 and 47,215.28

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Solution

The fourth proportional to 82,253.36, 123,380.04 and 47,215.28 is: 70,822.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,253.36 : 123,380.04 = 47,215.28 : x
  2. Step 2: Convert to fraction form
    82,253.36/123,380.04 = 47,215.28/x
  3. Step 3: Cross multiply
    82,253.36x = 123,380.04 × 47,215.28
  4. Step 4: Simplify right side
    82,253.36x = 5,825,423,135.01
  5. Step 5: Solve for x
    x = 5,825,423,135.01/82,253.36
  6. Step 6: Final answer
    x = 70,822.92

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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.