Home / 54,239.49-81,385.16-19,195.65

Finding the Fourth Proportional to 54,239.49, 81,385.16 and 19,195.65

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Solution

The fourth proportional to 54,239.49, 81,385.16 and 19,195.65 is: 28,802.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,239.49 : 81,385.16 = 19,195.65 : x
  2. Step 2: Convert to fraction form
    54,239.49/81,385.16 = 19,195.65/x
  3. Step 3: Cross multiply
    54,239.49x = 81,385.16 × 19,195.65
  4. Step 4: Simplify right side
    54,239.49x = 1,562,240,950.58
  5. Step 5: Solve for x
    x = 1,562,240,950.58/54,239.49
  6. Step 6: Final answer
    x = 28,802.65

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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.