Home / 54,320.13-81,436.35-19,240.65

Finding the Fourth Proportional to 54,320.13, 81,436.35 and 19,240.65

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Solution

The fourth proportional to 54,320.13, 81,436.35 and 19,240.65 is: 28,845.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,320.13 : 81,436.35 = 19,240.65 : x
  2. Step 2: Convert to fraction form
    54,320.13/81,436.35 = 19,240.65/x
  3. Step 3: Cross multiply
    54,320.13x = 81,436.35 × 19,240.65
  4. Step 4: Simplify right side
    54,320.13x = 1,566,888,307.63
  5. Step 5: Solve for x
    x = 1,566,888,307.63/54,320.13
  6. Step 6: Final answer
    x = 28,845.44

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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.