Home / 81,832.51-122,760.92-25,677.24

Finding the Fourth Proportional to 81,832.51, 122,760.92 and 25,677.24

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Solution

The fourth proportional to 81,832.51, 122,760.92 and 25,677.24 is: 38,519.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,832.51 : 122,760.92 = 25,677.24 : x
  2. Step 2: Convert to fraction form
    81,832.51/122,760.92 = 25,677.24/x
  3. Step 3: Cross multiply
    81,832.51x = 122,760.92 × 25,677.24
  4. Step 4: Simplify right side
    81,832.51x = 3,152,161,605.46
  5. Step 5: Solve for x
    x = 3,152,161,605.46/81,832.51
  6. Step 6: Final answer
    x = 38,519.67

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1.5x scale

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.