Home / 47,577.87-71,361.11-12,520.26

Finding the Fourth Proportional to 47,577.87, 71,361.11 and 12,520.26

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Solution

The fourth proportional to 47,577.87, 71,361.11 and 12,520.26 is: 18,778.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,577.87 : 71,361.11 = 12,520.26 : x
  2. Step 2: Convert to fraction form
    47,577.87/71,361.11 = 12,520.26/x
  3. Step 3: Cross multiply
    47,577.87x = 71,361.11 × 12,520.26
  4. Step 4: Simplify right side
    47,577.87x = 893,459,682.39
  5. Step 5: Solve for x
    x = 893,459,682.39/47,577.87
  6. Step 6: Final answer
    x = 18,778.89

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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.