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Finding the Fourth Proportional to 63,310.96, 87,408.96 and 40,659.12

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Solution

The fourth proportional to 63,310.96, 87,408.96 and 40,659.12 is: 56,135.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,310.96 : 87,408.96 = 40,659.12 : x
  2. Step 2: Convert to fraction form
    63,310.96/87,408.96 = 40,659.12/x
  3. Step 3: Cross multiply
    63,310.96x = 87,408.96 × 40,659.12
  4. Step 4: Simplify right side
    63,310.96x = 3,553,971,393.72
  5. Step 5: Solve for x
    x = 3,553,971,393.72/63,310.96
  6. Step 6: Final answer
    x = 56,135.17

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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.