Home / 82,635.96-123,970.35-30,038.61

Finding the Fourth Proportional to 82,635.96, 123,970.35 and 30,038.61

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Solution

The fourth proportional to 82,635.96, 123,970.35 and 30,038.61 is: 45,063.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,635.96 : 123,970.35 = 30,038.61 : x
  2. Step 2: Convert to fraction form
    82,635.96/123,970.35 = 30,038.61/x
  3. Step 3: Cross multiply
    82,635.96x = 123,970.35 × 30,038.61
  4. Step 4: Simplify right side
    82,635.96x = 3,723,896,995.21
  5. Step 5: Solve for x
    x = 3,723,896,995.21/82,635.96
  6. Step 6: Final answer
    x = 45,063.88

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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.