Home / 52,126.86-78,160.66-20,519.79

Finding the Fourth Proportional to 52,126.86, 78,160.66 and 20,519.79

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Solution

The fourth proportional to 52,126.86, 78,160.66 and 20,519.79 is: 30,768.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,126.86 : 78,160.66 = 20,519.79 : x
  2. Step 2: Convert to fraction form
    52,126.86/78,160.66 = 20,519.79/x
  3. Step 3: Cross multiply
    52,126.86x = 78,160.66 × 20,519.79
  4. Step 4: Simplify right side
    52,126.86x = 1,603,840,329.46
  5. Step 5: Solve for x
    x = 1,603,840,329.46/52,126.86
  6. Step 6: Final answer
    x = 30,768.02

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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.