Home / 272,554.88-408,835.96-85,566.38

Finding the Fourth Proportional to 272,554.88, 408,835.96 and 85,566.38

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Solution

The fourth proportional to 272,554.88, 408,835.96 and 85,566.38 is: 128,350.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,554.88 : 408,835.96 = 85,566.38 : x
  2. Step 2: Convert to fraction form
    272,554.88/408,835.96 = 85,566.38/x
  3. Step 3: Cross multiply
    272,554.88x = 408,835.96 × 85,566.38
  4. Step 4: Simplify right side
    272,554.88x = 34,982,610,852.93
  5. Step 5: Solve for x
    x = 34,982,610,852.93/272,554.88
  6. Step 6: Final answer
    x = 128,350.71

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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.