Home / 47,156.31-70,739.09-17,178.69

Finding the Fourth Proportional to 47,156.31, 70,739.09 and 17,178.69

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Solution

The fourth proportional to 47,156.31, 70,739.09 and 17,178.69 is: 25,769.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,156.31 : 70,739.09 = 17,178.69 : x
  2. Step 2: Convert to fraction form
    47,156.31/70,739.09 = 17,178.69/x
  3. Step 3: Cross multiply
    47,156.31x = 70,739.09 × 17,178.69
  4. Step 4: Simplify right side
    47,156.31x = 1,215,205,141.79
  5. Step 5: Solve for x
    x = 1,215,205,141.79/47,156.31
  6. Step 6: Final answer
    x = 25,769.73

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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.