Home / 55,628.19-76,772.40-31,758.46

Finding the Fourth Proportional to 55,628.19, 76,772.40 and 31,758.46

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Solution

The fourth proportional to 55,628.19, 76,772.40 and 31,758.46 is: 43,829.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,628.19 : 76,772.40 = 31,758.46 : x
  2. Step 2: Convert to fraction form
    55,628.19/76,772.40 = 31,758.46/x
  3. Step 3: Cross multiply
    55,628.19x = 76,772.40 × 31,758.46
  4. Step 4: Simplify right side
    55,628.19x = 2,438,173,194.50
  5. Step 5: Solve for x
    x = 2,438,173,194.50/55,628.19
  6. Step 6: Final answer
    x = 43,829.81

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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.