Home / 53,569.92-80,339.04-20,265.28

Finding the Fourth Proportional to 53,569.92, 80,339.04 and 20,265.28

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Solution

The fourth proportional to 53,569.92, 80,339.04 and 20,265.28 is: 30,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,569.92 : 80,339.04 = 20,265.28 : x
  2. Step 2: Convert to fraction form
    53,569.92/80,339.04 = 20,265.28/x
  3. Step 3: Cross multiply
    53,569.92x = 80,339.04 × 20,265.28
  4. Step 4: Simplify right side
    53,569.92x = 1,628,093,140.53
  5. Step 5: Solve for x
    x = 1,628,093,140.53/53,569.92
  6. Step 6: Final answer
    x = 30,391.93

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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.