Home / 51,628.91-71,239.43-30,405.29

Finding the Fourth Proportional to 51,628.91, 71,239.43 and 30,405.29

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Solution

The fourth proportional to 51,628.91, 71,239.43 and 30,405.29 is: 41,954.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,628.91 : 71,239.43 = 30,405.29 : x
  2. Step 2: Convert to fraction form
    51,628.91/71,239.43 = 30,405.29/x
  3. Step 3: Cross multiply
    51,628.91x = 71,239.43 × 30,405.29
  4. Step 4: Simplify right side
    51,628.91x = 2,166,055,248.40
  5. Step 5: Solve for x
    x = 2,166,055,248.40/51,628.91
  6. Step 6: Final answer
    x = 41,954.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.