Home / 51,910.83-71,637.62-30,689.91

Finding the Fourth Proportional to 51,910.83, 71,637.62 and 30,689.91

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Solution

The fourth proportional to 51,910.83, 71,637.62 and 30,689.91 is: 42,352.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,910.83 : 71,637.62 = 30,689.91 : x
  2. Step 2: Convert to fraction form
    51,910.83/71,637.62 = 30,689.91/x
  3. Step 3: Cross multiply
    51,910.83x = 71,637.62 × 30,689.91
  4. Step 4: Simplify right side
    51,910.83x = 2,198,551,956.96
  5. Step 5: Solve for x
    x = 2,198,551,956.96/51,910.83
  6. Step 6: Final answer
    x = 42,352.47

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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.