Home / 52,180.21-78,269.16-12,737.20

Finding the Fourth Proportional to 52,180.21, 78,269.16 and 12,737.20

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Solution

The fourth proportional to 52,180.21, 78,269.16 and 12,737.20 is: 19,105.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,180.21 : 78,269.16 = 12,737.20 : x
  2. Step 2: Convert to fraction form
    52,180.21/78,269.16 = 12,737.20/x
  3. Step 3: Cross multiply
    52,180.21x = 78,269.16 × 12,737.20
  4. Step 4: Simplify right side
    52,180.21x = 996,929,944.75
  5. Step 5: Solve for x
    x = 996,929,944.75/52,180.21
  6. Step 6: Final answer
    x = 19,105.52

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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.