Home / 80,566.36-120,857.91-38,439.34

Finding the Fourth Proportional to 80,566.36, 120,857.91 and 38,439.34

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Solution

The fourth proportional to 80,566.36, 120,857.91 and 38,439.34 is: 57,663.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,566.36 : 120,857.91 = 38,439.34 : x
  2. Step 2: Convert to fraction form
    80,566.36/120,857.91 = 38,439.34/x
  3. Step 3: Cross multiply
    80,566.36x = 120,857.91 × 38,439.34
  4. Step 4: Simplify right side
    80,566.36x = 4,645,697,497.69
  5. Step 5: Solve for x
    x = 4,645,697,497.69/80,566.36
  6. Step 6: Final answer
    x = 57,663.00

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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.