Home / 55,253.51-76,247.21-31,376.94

Finding the Fourth Proportional to 55,253.51, 76,247.21 and 31,376.94

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Solution

The fourth proportional to 55,253.51, 76,247.21 and 31,376.94 is: 43,298.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,253.51 : 76,247.21 = 31,376.94 : x
  2. Step 2: Convert to fraction form
    55,253.51/76,247.21 = 31,376.94/x
  3. Step 3: Cross multiply
    55,253.51x = 76,247.21 × 31,376.94
  4. Step 4: Simplify right side
    55,253.51x = 2,392,403,976.45
  5. Step 5: Solve for x
    x = 2,392,403,976.45/55,253.51
  6. Step 6: Final answer
    x = 43,298.68

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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.