Home / 55,795.16-76,997.76-31,920.36

Finding the Fourth Proportional to 55,795.16, 76,997.76 and 31,920.36

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Solution

The fourth proportional to 55,795.16, 76,997.76 and 31,920.36 is: 44,050.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,795.16 : 76,997.76 = 31,920.36 : x
  2. Step 2: Convert to fraction form
    55,795.16/76,997.76 = 31,920.36/x
  3. Step 3: Cross multiply
    55,795.16x = 76,997.76 × 31,920.36
  4. Step 4: Simplify right side
    55,795.16x = 2,457,796,218.39
  5. Step 5: Solve for x
    x = 2,457,796,218.39/55,795.16
  6. Step 6: Final answer
    x = 44,050.35

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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.