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Finding the Fourth Proportional to 52,345.78, 78,480.39 and 16,786.86

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Solution

The fourth proportional to 52,345.78, 78,480.39 and 16,786.86 is: 25,168.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,345.78 : 78,480.39 = 16,786.86 : x
  2. Step 2: Convert to fraction form
    52,345.78/78,480.39 = 16,786.86/x
  3. Step 3: Cross multiply
    52,345.78x = 78,480.39 × 16,786.86
  4. Step 4: Simplify right side
    52,345.78x = 1,317,439,371.65
  5. Step 5: Solve for x
    x = 1,317,439,371.65/52,345.78
  6. Step 6: Final answer
    x = 25,168.01

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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.