Home / 68,985.72-95,180.67-38,767.86

Finding the Fourth Proportional to 68,985.72, 95,180.67 and 38,767.86

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Solution

The fourth proportional to 68,985.72, 95,180.67 and 38,767.86 is: 53,488.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,985.72 : 95,180.67 = 38,767.86 : x
  2. Step 2: Convert to fraction form
    68,985.72/95,180.67 = 38,767.86/x
  3. Step 3: Cross multiply
    68,985.72x = 95,180.67 × 38,767.86
  4. Step 4: Simplify right side
    68,985.72x = 3,689,950,889.27
  5. Step 5: Solve for x
    x = 3,689,950,889.27/68,985.72
  6. Step 6: Final answer
    x = 53,488.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.