Home / 217,021.13-325,531.73-90,592.41

Finding the Fourth Proportional to 217,021.13, 325,531.73 and 90,592.41

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Solution

The fourth proportional to 217,021.13, 325,531.73 and 90,592.41 is: 135,888.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,021.13 : 325,531.73 = 90,592.41 : x
  2. Step 2: Convert to fraction form
    217,021.13/325,531.73 = 90,592.41/x
  3. Step 3: Cross multiply
    217,021.13x = 325,531.73 × 90,592.41
  4. Step 4: Simplify right side
    217,021.13x = 29,490,703,952.17
  5. Step 5: Solve for x
    x = 29,490,703,952.17/217,021.13
  6. Step 6: Final answer
    x = 135,888.63

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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.