Home / 86,461.43-129,832.74-53,391.83

Finding the Fourth Proportional to 86,461.43, 129,832.74 and 53,391.83

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Solution

The fourth proportional to 86,461.43, 129,832.74 and 53,391.83 is: 80,174.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,461.43 : 129,832.74 = 53,391.83 : x
  2. Step 2: Convert to fraction form
    86,461.43/129,832.74 = 53,391.83/x
  3. Step 3: Cross multiply
    86,461.43x = 129,832.74 × 53,391.83
  4. Step 4: Simplify right side
    86,461.43x = 6,932,006,933.35
  5. Step 5: Solve for x
    x = 6,932,006,933.35/86,461.43
  6. Step 6: Final answer
    x = 80,174.56

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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.