Home / 52,052.49-78,078.48-12,609.61

Finding the Fourth Proportional to 52,052.49, 78,078.48 and 12,609.61

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Solution

The fourth proportional to 52,052.49, 78,078.48 and 12,609.61 is: 18,914.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,052.49 : 78,078.48 = 12,609.61 : x
  2. Step 2: Convert to fraction form
    52,052.49/78,078.48 = 12,609.61/x
  3. Step 3: Cross multiply
    52,052.49x = 78,078.48 × 12,609.61
  4. Step 4: Simplify right side
    52,052.49x = 984,539,182.19
  5. Step 5: Solve for x
    x = 984,539,182.19/52,052.49
  6. Step 6: Final answer
    x = 18,914.35

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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.