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Finding the Fourth Proportional to 87,677.60, 131,602.80 and 43,354.40

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Solution

The fourth proportional to 87,677.60, 131,602.80 and 43,354.40 is: 65,074.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,677.60 : 131,602.80 = 43,354.40 : x
  2. Step 2: Convert to fraction form
    87,677.60/131,602.80 = 43,354.40/x
  3. Step 3: Cross multiply
    87,677.60x = 131,602.80 × 43,354.40
  4. Step 4: Simplify right side
    87,677.60x = 5,705,560,432.32
  5. Step 5: Solve for x
    x = 5,705,560,432.32/87,677.60
  6. Step 6: Final answer
    x = 65,074.32

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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.