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Finding the Fourth Proportional to 63,981.20, 96,019.80 and 32,800.40

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Solution

The fourth proportional to 63,981.20, 96,019.80 and 32,800.40 is: 49,225.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,981.20 : 96,019.80 = 32,800.40 : x
  2. Step 2: Convert to fraction form
    63,981.20/96,019.80 = 32,800.40/x
  3. Step 3: Cross multiply
    63,981.20x = 96,019.80 × 32,800.40
  4. Step 4: Simplify right side
    63,981.20x = 3,149,487,847.92
  5. Step 5: Solve for x
    x = 3,149,487,847.92/63,981.20
  6. Step 6: Final answer
    x = 49,225.21

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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.