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Finding the Fourth Proportional to 63,149.63, 87,146.48 and 34,855.31

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Solution

The fourth proportional to 63,149.63, 87,146.48 and 34,855.31 is: 48,100.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,149.63 : 87,146.48 = 34,855.31 : x
  2. Step 2: Convert to fraction form
    63,149.63/87,146.48 = 34,855.31/x
  3. Step 3: Cross multiply
    63,149.63x = 87,146.48 × 34,855.31
  4. Step 4: Simplify right side
    63,149.63x = 3,037,517,880.81
  5. Step 5: Solve for x
    x = 3,037,517,880.81/63,149.63
  6. Step 6: Final answer
    x = 48,100.33

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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.