Home / 54,306.32-81,408.99-21,048.08

Finding the Fourth Proportional to 54,306.32, 81,408.99 and 21,048.08

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Solution

The fourth proportional to 54,306.32, 81,408.99 and 21,048.08 is: 31,552.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,306.32 : 81,408.99 = 21,048.08 : x
  2. Step 2: Convert to fraction form
    54,306.32/81,408.99 = 21,048.08/x
  3. Step 3: Cross multiply
    54,306.32x = 81,408.99 × 21,048.08
  4. Step 4: Simplify right side
    54,306.32x = 1,713,502,934.24
  5. Step 5: Solve for x
    x = 1,713,502,934.24/54,306.32
  6. Step 6: Final answer
    x = 31,552.55

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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.