Home / 83,721.92-125,582.94-21,392.48

Finding the Fourth Proportional to 83,721.92, 125,582.94 and 21,392.48

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Solution

The fourth proportional to 83,721.92, 125,582.94 and 21,392.48 is: 32,088.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,721.92 : 125,582.94 = 21,392.48 : x
  2. Step 2: Convert to fraction form
    83,721.92/125,582.94 = 21,392.48/x
  3. Step 3: Cross multiply
    83,721.92x = 125,582.94 × 21,392.48
  4. Step 4: Simplify right side
    83,721.92x = 2,686,530,532.29
  5. Step 5: Solve for x
    x = 2,686,530,532.29/83,721.92
  6. Step 6: Final answer
    x = 32,088.74

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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.