Home / 52,112.36-78,167.46-12,669.68

Finding the Fourth Proportional to 52,112.36, 78,167.46 and 12,669.68

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Solution

The fourth proportional to 52,112.36, 78,167.46 and 12,669.68 is: 19,004.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,112.36 : 78,167.46 = 12,669.68 : x
  2. Step 2: Convert to fraction form
    52,112.36/78,167.46 = 12,669.68/x
  3. Step 3: Cross multiply
    52,112.36x = 78,167.46 × 12,669.68
  4. Step 4: Simplify right side
    52,112.36x = 990,356,704.61
  5. Step 5: Solve for x
    x = 990,356,704.61/52,112.36
  6. Step 6: Final answer
    x = 19,004.26

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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.