Home / 54,590.12-81,904.54-31,236.20

Finding the Fourth Proportional to 54,590.12, 81,904.54 and 31,236.20

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Solution

The fourth proportional to 54,590.12, 81,904.54 and 31,236.20 is: 46,865.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,590.12 : 81,904.54 = 31,236.20 : x
  2. Step 2: Convert to fraction form
    54,590.12/81,904.54 = 31,236.20/x
  3. Step 3: Cross multiply
    54,590.12x = 81,904.54 × 31,236.20
  4. Step 4: Simplify right side
    54,590.12x = 2,558,386,592.35
  5. Step 5: Solve for x
    x = 2,558,386,592.35/54,590.12
  6. Step 6: Final answer
    x = 46,865.38

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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.