Home / 82,477.92-123,709.80-26,315.76

Finding the Fourth Proportional to 82,477.92, 123,709.80 and 26,315.76

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Solution

The fourth proportional to 82,477.92, 123,709.80 and 26,315.76 is: 39,471.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,477.92 : 123,709.80 = 26,315.76 : x
  2. Step 2: Convert to fraction form
    82,477.92/123,709.80 = 26,315.76/x
  3. Step 3: Cross multiply
    82,477.92x = 123,709.80 × 26,315.76
  4. Step 4: Simplify right side
    82,477.92x = 3,255,517,406.45
  5. Step 5: Solve for x
    x = 3,255,517,406.45/82,477.92
  6. Step 6: Final answer
    x = 39,471.38

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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.