Home / 52,650.14-78,989.05-18,919.55

Finding the Fourth Proportional to 52,650.14, 78,989.05 and 18,919.55

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Solution

The fourth proportional to 52,650.14, 78,989.05 and 18,919.55 is: 28,384.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,650.14 : 78,989.05 = 18,919.55 : x
  2. Step 2: Convert to fraction form
    52,650.14/78,989.05 = 18,919.55/x
  3. Step 3: Cross multiply
    52,650.14x = 78,989.05 × 18,919.55
  4. Step 4: Simplify right side
    52,650.14x = 1,494,437,502.05
  5. Step 5: Solve for x
    x = 1,494,437,502.05/52,650.14
  6. Step 6: Final answer
    x = 28,384.31

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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.