Home / 53,419.20-80,072.29-20,124.87

Finding the Fourth Proportional to 53,419.20, 80,072.29 and 20,124.87

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Solution

The fourth proportional to 53,419.20, 80,072.29 and 20,124.87 is: 30,166.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,419.20 : 80,072.29 = 20,124.87 : x
  2. Step 2: Convert to fraction form
    53,419.20/80,072.29 = 20,124.87/x
  3. Step 3: Cross multiply
    53,419.20x = 80,072.29 × 20,124.87
  4. Step 4: Simplify right side
    53,419.20x = 1,611,444,426.85
  5. Step 5: Solve for x
    x = 1,611,444,426.85/53,419.20
  6. Step 6: Final answer
    x = 30,166.02

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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.