Home / 82,036.10-123,054.15-68,039.30

Finding the Fourth Proportional to 82,036.10, 123,054.15 and 68,039.30

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Solution

The fourth proportional to 82,036.10, 123,054.15 and 68,039.30 is: 102,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,036.10 : 123,054.15 = 68,039.30 : x
  2. Step 2: Convert to fraction form
    82,036.10/123,054.15 = 68,039.30/x
  3. Step 3: Cross multiply
    82,036.10x = 123,054.15 × 68,039.30
  4. Step 4: Simplify right side
    82,036.10x = 8,372,518,228.10
  5. Step 5: Solve for x
    x = 8,372,518,228.10/82,036.10
  6. Step 6: Final answer
    x = 102,058.95

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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.