Home / 82,076.88-123,055.38-55,356.45

Finding the Fourth Proportional to 82,076.88, 123,055.38 and 55,356.45

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Solution

The fourth proportional to 82,076.88, 123,055.38 and 55,356.45 is: 82,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,076.88 : 123,055.38 = 55,356.45 : x
  2. Step 2: Convert to fraction form
    82,076.88/123,055.38 = 55,356.45/x
  3. Step 3: Cross multiply
    82,076.88x = 123,055.38 × 55,356.45
  4. Step 4: Simplify right side
    82,076.88x = 6,811,908,990.20
  5. Step 5: Solve for x
    x = 6,811,908,990.20/82,076.88
  6. Step 6: Final answer
    x = 82,994.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.