Home / 52,118.25-78,176.28-12,675.57

Finding the Fourth Proportional to 52,118.25, 78,176.28 and 12,675.57

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Solution

The fourth proportional to 52,118.25, 78,176.28 and 12,675.57 is: 19,013.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,118.25 : 78,176.28 = 12,675.57 : x
  2. Step 2: Convert to fraction form
    52,118.25/78,176.28 = 12,675.57/x
  3. Step 3: Cross multiply
    52,118.25x = 78,176.28 × 12,675.57
  4. Step 4: Simplify right side
    52,118.25x = 990,928,909.48
  5. Step 5: Solve for x
    x = 990,928,909.48/52,118.25
  6. Step 6: Final answer
    x = 19,013.09

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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.