Home / 55,113.11-76,056.96-31,239.27

Finding the Fourth Proportional to 55,113.11, 76,056.96 and 31,239.27

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Solution

The fourth proportional to 55,113.11, 76,056.96 and 31,239.27 is: 43,110.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,113.11 : 76,056.96 = 31,239.27 : x
  2. Step 2: Convert to fraction form
    55,113.11/76,056.96 = 31,239.27/x
  3. Step 3: Cross multiply
    55,113.11x = 76,056.96 × 31,239.27
  4. Step 4: Simplify right side
    55,113.11x = 2,375,963,908.82
  5. Step 5: Solve for x
    x = 2,375,963,908.82/55,113.11
  6. Step 6: Final answer
    x = 43,110.69

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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.