Home / 53,828.91-80,746.34-20,551.68

Finding the Fourth Proportional to 53,828.91, 80,746.34 and 20,551.68

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Solution

The fourth proportional to 53,828.91, 80,746.34 and 20,551.68 is: 30,828.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,828.91 : 80,746.34 = 20,551.68 : x
  2. Step 2: Convert to fraction form
    53,828.91/80,746.34 = 20,551.68/x
  3. Step 3: Cross multiply
    53,828.91x = 80,746.34 × 20,551.68
  4. Step 4: Simplify right side
    53,828.91x = 1,659,472,838.09
  5. Step 5: Solve for x
    x = 1,659,472,838.09/53,828.91
  6. Step 6: Final answer
    x = 30,828.65

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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.