Home / 52,065.75-78,098.62-12,622.86

Finding the Fourth Proportional to 52,065.75, 78,098.62 and 12,622.86

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Solution

The fourth proportional to 52,065.75, 78,098.62 and 12,622.86 is: 18,934.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,065.75 : 78,098.62 = 12,622.86 : x
  2. Step 2: Convert to fraction form
    52,065.75/78,098.62 = 12,622.86/x
  3. Step 3: Cross multiply
    52,065.75x = 78,098.62 × 12,622.86
  4. Step 4: Simplify right side
    52,065.75x = 985,827,946.45
  5. Step 5: Solve for x
    x = 985,827,946.45/52,065.75
  6. Step 6: Final answer
    x = 18,934.29

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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.