Home / 82,379.52-123,470.40-37,945.28

Finding the Fourth Proportional to 82,379.52, 123,470.40 and 37,945.28

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Solution

The fourth proportional to 82,379.52, 123,470.40 and 37,945.28 is: 56,872.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,379.52 : 123,470.40 = 37,945.28 : x
  2. Step 2: Convert to fraction form
    82,379.52/123,470.40 = 37,945.28/x
  3. Step 3: Cross multiply
    82,379.52x = 123,470.40 × 37,945.28
  4. Step 4: Simplify right side
    82,379.52x = 4,685,118,899.71
  5. Step 5: Solve for x
    x = 4,685,118,899.71/82,379.52
  6. Step 6: Final answer
    x = 56,872.37

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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.