Home / 82,278.23-123,417.33-19,948.73

Finding the Fourth Proportional to 82,278.23, 123,417.33 and 19,948.73

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Solution

The fourth proportional to 82,278.23, 123,417.33 and 19,948.73 is: 29,923.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,278.23 : 123,417.33 = 19,948.73 : x
  2. Step 2: Convert to fraction form
    82,278.23/123,417.33 = 19,948.73/x
  3. Step 3: Cross multiply
    82,278.23x = 123,417.33 × 19,948.73
  4. Step 4: Simplify right side
    82,278.23x = 2,462,018,993.49
  5. Step 5: Solve for x
    x = 2,462,018,993.49/82,278.23
  6. Step 6: Final answer
    x = 29,923.09

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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.