Home / 83,837.91-125,756.73-21,508.41

Finding the Fourth Proportional to 83,837.91, 125,756.73 and 21,508.41

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Solution

The fourth proportional to 83,837.91, 125,756.73 and 21,508.41 is: 32,262.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,837.91 : 125,756.73 = 21,508.41 : x
  2. Step 2: Convert to fraction form
    83,837.91/125,756.73 = 21,508.41/x
  3. Step 3: Cross multiply
    83,837.91x = 125,756.73 × 21,508.41
  4. Step 4: Simplify right side
    83,837.91x = 2,704,827,309.10
  5. Step 5: Solve for x
    x = 2,704,827,309.10/83,837.91
  6. Step 6: Final answer
    x = 32,262.58

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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.