Home / 81,203.91-112,084.04-55,714.43

Finding the Fourth Proportional to 81,203.91, 112,084.04 and 55,714.43

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Solution

The fourth proportional to 81,203.91, 112,084.04 and 55,714.43 is: 76,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,203.91 : 112,084.04 = 55,714.43 : x
  2. Step 2: Convert to fraction form
    81,203.91/112,084.04 = 55,714.43/x
  3. Step 3: Cross multiply
    81,203.91x = 112,084.04 × 55,714.43
  4. Step 4: Simplify right side
    81,203.91x = 6,244,698,400.70
  5. Step 5: Solve for x
    x = 6,244,698,400.70/81,203.91
  6. Step 6: Final answer
    x = 76,901.45

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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.