Home / 105,590.25-145,714.55-57,843.79

Finding the Fourth Proportional to 105,590.25, 145,714.55 and 57,843.79

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Solution

The fourth proportional to 105,590.25, 145,714.55 and 57,843.79 is: 79,824.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,590.25 : 145,714.55 = 57,843.79 : x
  2. Step 2: Convert to fraction form
    105,590.25/145,714.55 = 57,843.79/x
  3. Step 3: Cross multiply
    105,590.25x = 145,714.55 × 57,843.79
  4. Step 4: Simplify right side
    105,590.25x = 8,428,681,176.64
  5. Step 5: Solve for x
    x = 8,428,681,176.64/105,590.25
  6. Step 6: Final answer
    x = 79,824.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.