Home / 82,027.80-123,040.62-56,702.88

Finding the Fourth Proportional to 82,027.80, 123,040.62 and 56,702.88

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Solution

The fourth proportional to 82,027.80, 123,040.62 and 56,702.88 is: 85,053.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,027.80 : 123,040.62 = 56,702.88 : x
  2. Step 2: Convert to fraction form
    82,027.80/123,040.62 = 56,702.88/x
  3. Step 3: Cross multiply
    82,027.80x = 123,040.62 × 56,702.88
  4. Step 4: Simplify right side
    82,027.80x = 6,976,757,510.99
  5. Step 5: Solve for x
    x = 6,976,757,510.99/82,027.80
  6. Step 6: Final answer
    x = 85,053.57

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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.