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Finding the Fourth Proportional to 52,273.44, 78,409.44 and 12,830.40

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Solution

The fourth proportional to 52,273.44, 78,409.44 and 12,830.40 is: 19,245.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,273.44 : 78,409.44 = 12,830.40 : x
  2. Step 2: Convert to fraction form
    52,273.44/78,409.44 = 12,830.40/x
  3. Step 3: Cross multiply
    52,273.44x = 78,409.44 × 12,830.40
  4. Step 4: Simplify right side
    52,273.44x = 1,006,024,478.98
  5. Step 5: Solve for x
    x = 1,006,024,478.98/52,273.44
  6. Step 6: Final answer
    x = 19,245.42

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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.