Home / 52,211.45-78,253.05-20,589.77

Finding the Fourth Proportional to 52,211.45, 78,253.05 and 20,589.77

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Solution

The fourth proportional to 52,211.45, 78,253.05 and 20,589.77 is: 30,859.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,211.45 : 78,253.05 = 20,589.77 : x
  2. Step 2: Convert to fraction form
    52,211.45/78,253.05 = 20,589.77/x
  3. Step 3: Cross multiply
    52,211.45x = 78,253.05 × 20,589.77
  4. Step 4: Simplify right side
    52,211.45x = 1,611,212,301.30
  5. Step 5: Solve for x
    x = 1,611,212,301.30/52,211.45
  6. Step 6: Final answer
    x = 30,859.37

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1.5x scale

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.