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Finding the Fourth Proportional to 52,392.57, 78,588.08 and 12,949.69

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Solution

The fourth proportional to 52,392.57, 78,588.08 and 12,949.69 is: 19,424.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,392.57 : 78,588.08 = 12,949.69 : x
  2. Step 2: Convert to fraction form
    52,392.57/78,588.08 = 12,949.69/x
  3. Step 3: Cross multiply
    52,392.57x = 78,588.08 × 12,949.69
  4. Step 4: Simplify right side
    52,392.57x = 1,017,691,273.70
  5. Step 5: Solve for x
    x = 1,017,691,273.70/52,392.57
  6. Step 6: Final answer
    x = 19,424.34

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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.