Home / 82,178.75-123,272.48-26,024.79

Finding the Fourth Proportional to 82,178.75, 123,272.48 and 26,024.79

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Solution

The fourth proportional to 82,178.75, 123,272.48 and 26,024.79 is: 39,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,178.75 : 123,272.48 = 26,024.79 : x
  2. Step 2: Convert to fraction form
    82,178.75/123,272.48 = 26,024.79/x
  3. Step 3: Cross multiply
    82,178.75x = 123,272.48 × 26,024.79
  4. Step 4: Simplify right side
    82,178.75x = 3,208,140,932.11
  5. Step 5: Solve for x
    x = 3,208,140,932.11/82,178.75
  6. Step 6: Final answer
    x = 39,038.57

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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.