Home / 82,278.86-123,418.28-19,949.36

Finding the Fourth Proportional to 82,278.86, 123,418.28 and 19,949.36

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Solution

The fourth proportional to 82,278.86, 123,418.28 and 19,949.36 is: 29,924.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,278.86 : 123,418.28 = 19,949.36 : x
  2. Step 2: Convert to fraction form
    82,278.86/123,418.28 = 19,949.36/x
  3. Step 3: Cross multiply
    82,278.86x = 123,418.28 × 19,949.36
  4. Step 4: Simplify right side
    82,278.86x = 2,462,115,131.08
  5. Step 5: Solve for x
    x = 2,462,115,131.08/82,278.86
  6. Step 6: Final answer
    x = 29,924.03

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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.