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Finding the Fourth Proportional to 63,398.96, 87,465.60 and 40,734.80

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Solution

The fourth proportional to 63,398.96, 87,465.60 and 40,734.80 is: 56,197.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,398.96 : 87,465.60 = 40,734.80 : x
  2. Step 2: Convert to fraction form
    63,398.96/87,465.60 = 40,734.80/x
  3. Step 3: Cross multiply
    63,398.96x = 87,465.60 × 40,734.80
  4. Step 4: Simplify right side
    63,398.96x = 3,562,893,722.88
  5. Step 5: Solve for x
    x = 3,562,893,722.88/63,398.96
  6. Step 6: Final answer
    x = 56,197.98

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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.