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Finding the Fourth Proportional to 63,189.20, 87,200.56 and 34,894.28

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Solution

The fourth proportional to 63,189.20, 87,200.56 and 34,894.28 is: 48,153.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,189.20 : 87,200.56 = 34,894.28 : x
  2. Step 2: Convert to fraction form
    63,189.20/87,200.56 = 34,894.28/x
  3. Step 3: Cross multiply
    63,189.20x = 87,200.56 × 34,894.28
  4. Step 4: Simplify right side
    63,189.20x = 3,042,800,756.80
  5. Step 5: Solve for x
    x = 3,042,800,756.80/63,189.20
  6. Step 6: Final answer
    x = 48,153.81

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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.