Home / 52,276.41-78,414.62-18,990.27

Finding the Fourth Proportional to 52,276.41, 78,414.62 and 18,990.27

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Solution

The fourth proportional to 52,276.41, 78,414.62 and 18,990.27 is: 28,485.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,276.41 : 78,414.62 = 18,990.27 : x
  2. Step 2: Convert to fraction form
    52,276.41/78,414.62 = 18,990.27/x
  3. Step 3: Cross multiply
    52,276.41x = 78,414.62 × 18,990.27
  4. Step 4: Simplify right side
    52,276.41x = 1,489,114,710.80
  5. Step 5: Solve for x
    x = 1,489,114,710.80/52,276.41
  6. Step 6: Final answer
    x = 28,485.41

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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.