Home / 52,054.25-78,081.11-12,611.36

Finding the Fourth Proportional to 52,054.25, 78,081.11 and 12,611.36

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Solution

The fourth proportional to 52,054.25, 78,081.11 and 12,611.36 is: 18,916.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,054.25 : 78,081.11 = 12,611.36 : x
  2. Step 2: Convert to fraction form
    52,054.25/78,081.11 = 12,611.36/x
  3. Step 3: Cross multiply
    52,054.25x = 78,081.11 × 12,611.36
  4. Step 4: Simplify right side
    52,054.25x = 984,708,924.35
  5. Step 5: Solve for x
    x = 984,708,924.35/52,054.25
  6. Step 6: Final answer
    x = 18,916.98

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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.