Home / 50,320.60-75,432.90-18,722.20

Finding the Fourth Proportional to 50,320.60, 75,432.90 and 18,722.20

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Solution

The fourth proportional to 50,320.60, 75,432.90 and 18,722.20 is: 28,065.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,320.60 : 75,432.90 = 18,722.20 : x
  2. Step 2: Convert to fraction form
    50,320.60/75,432.90 = 18,722.20/x
  3. Step 3: Cross multiply
    50,320.60x = 75,432.90 × 18,722.20
  4. Step 4: Simplify right side
    50,320.60x = 1,412,269,840.38
  5. Step 5: Solve for x
    x = 1,412,269,840.38/50,320.60
  6. Step 6: Final answer
    x = 28,065.44

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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.