Home / 55,728.28-76,905.02-31,855.46

Finding the Fourth Proportional to 55,728.28, 76,905.02 and 31,855.46

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Solution

The fourth proportional to 55,728.28, 76,905.02 and 31,855.46 is: 43,960.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,728.28 : 76,905.02 = 31,855.46 : x
  2. Step 2: Convert to fraction form
    55,728.28/76,905.02 = 31,855.46/x
  3. Step 3: Cross multiply
    55,728.28x = 76,905.02 × 31,855.46
  4. Step 4: Simplify right side
    55,728.28x = 2,449,844,629.13
  5. Step 5: Solve for x
    x = 2,449,844,629.13/55,728.28
  6. Step 6: Final answer
    x = 43,960.53

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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.