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Finding the Fourth Proportional to 63,280.20, 87,324.21 and 36,404.40

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Solution

The fourth proportional to 63,280.20, 87,324.21 and 36,404.40 is: 50,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,280.20 : 87,324.21 = 36,404.40 : x
  2. Step 2: Convert to fraction form
    63,280.20/87,324.21 = 36,404.40/x
  3. Step 3: Cross multiply
    63,280.20x = 87,324.21 × 36,404.40
  4. Step 4: Simplify right side
    63,280.20x = 3,178,985,470.52
  5. Step 5: Solve for x
    x = 3,178,985,470.52/63,280.20
  6. Step 6: Final answer
    x = 50,236.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.