Home / 85,467.24-128,177.82-38,673

Finding the Fourth Proportional to 85,467.24, 128,177.82 and 38,673

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Solution

The fourth proportional to 85,467.24, 128,177.82 and 38,673 is: 57,999.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,467.24 : 128,177.82 = 38,673 : x
  2. Step 2: Convert to fraction form
    85,467.24/128,177.82 = 38,673/x
  3. Step 3: Cross multiply
    85,467.24x = 128,177.82 × 38,673
  4. Step 4: Simplify right side
    85,467.24x = 4,957,020,832.86
  5. Step 5: Solve for x
    x = 4,957,020,832.86/85,467.24
  6. Step 6: Final answer
    x = 57,999.07

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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.