Home / 53,838.61-80,790.58-20,129.18

Finding the Fourth Proportional to 53,838.61, 80,790.58 and 20,129.18

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Solution

The fourth proportional to 53,838.61, 80,790.58 and 20,129.18 is: 30,205.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,838.61 : 80,790.58 = 20,129.18 : x
  2. Step 2: Convert to fraction form
    53,838.61/80,790.58 = 20,129.18/x
  3. Step 3: Cross multiply
    53,838.61x = 80,790.58 × 20,129.18
  4. Step 4: Simplify right side
    53,838.61x = 1,626,247,748.33
  5. Step 5: Solve for x
    x = 1,626,247,748.33/53,838.61
  6. Step 6: Final answer
    x = 30,205.98

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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.