Home / 57,717.50-86,543.84-20,267.15

Finding the Fourth Proportional to 57,717.50, 86,543.84 and 20,267.15

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Solution

The fourth proportional to 57,717.50, 86,543.84 and 20,267.15 is: 30,389.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,717.50 : 86,543.84 = 20,267.15 : x
  2. Step 2: Convert to fraction form
    57,717.50/86,543.84 = 20,267.15/x
  3. Step 3: Cross multiply
    57,717.50x = 86,543.84 × 20,267.15
  4. Step 4: Simplify right side
    57,717.50x = 1,753,996,604.80
  5. Step 5: Solve for x
    x = 1,753,996,604.80/57,717.50
  6. Step 6: Final answer
    x = 30,389.34

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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.