Home / 52,136.34-78,204.66-12,693.39

Finding the Fourth Proportional to 52,136.34, 78,204.66 and 12,693.39

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Solution

The fourth proportional to 52,136.34, 78,204.66 and 12,693.39 is: 19,040.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,136.34 : 78,204.66 = 12,693.39 : x
  2. Step 2: Convert to fraction form
    52,136.34/78,204.66 = 12,693.39/x
  3. Step 3: Cross multiply
    52,136.34x = 78,204.66 × 12,693.39
  4. Step 4: Simplify right side
    52,136.34x = 992,682,249.20
  5. Step 5: Solve for x
    x = 992,682,249.20/52,136.34
  6. Step 6: Final answer
    x = 19,040.12

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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.