Home / 80,541.60-120,795.12-25,107.36

Finding the Fourth Proportional to 80,541.60, 120,795.12 and 25,107.36

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Solution

The fourth proportional to 80,541.60, 120,795.12 and 25,107.36 is: 37,655.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,541.60 : 120,795.12 = 25,107.36 : x
  2. Step 2: Convert to fraction form
    80,541.60/120,795.12 = 25,107.36/x
  3. Step 3: Cross multiply
    80,541.60x = 120,795.12 × 25,107.36
  4. Step 4: Simplify right side
    80,541.60x = 3,032,846,564.08
  5. Step 5: Solve for x
    x = 3,032,846,564.08/80,541.60
  6. Step 6: Final answer
    x = 37,655.65

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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.