Home / 43,539.99-65,310.79-12,376.05

Finding the Fourth Proportional to 43,539.99, 65,310.79 and 12,376.05

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Solution

The fourth proportional to 43,539.99, 65,310.79 and 12,376.05 is: 18,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,539.99 : 65,310.79 = 12,376.05 : x
  2. Step 2: Convert to fraction form
    43,539.99/65,310.79 = 12,376.05/x
  3. Step 3: Cross multiply
    43,539.99x = 65,310.79 × 12,376.05
  4. Step 4: Simplify right side
    43,539.99x = 808,289,276.03
  5. Step 5: Solve for x
    x = 808,289,276.03/43,539.99
  6. Step 6: Final answer
    x = 18,564.30

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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.