Home / 82,295.55-123,443.36-19,966.05

Finding the Fourth Proportional to 82,295.55, 123,443.36 and 19,966.05

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Solution

The fourth proportional to 82,295.55, 123,443.36 and 19,966.05 is: 29,949.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,295.55 : 123,443.36 = 19,966.05 : x
  2. Step 2: Convert to fraction form
    82,295.55/123,443.36 = 19,966.05/x
  3. Step 3: Cross multiply
    82,295.55x = 123,443.36 × 19,966.05
  4. Step 4: Simplify right side
    82,295.55x = 2,464,676,198.10
  5. Step 5: Solve for x
    x = 2,464,676,198.10/82,295.55
  6. Step 6: Final answer
    x = 29,949.08

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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.