Home / 43,327.20-64,987.83-12,162.45

Finding the Fourth Proportional to 43,327.20, 64,987.83 and 12,162.45

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Solution

The fourth proportional to 43,327.20, 64,987.83 and 12,162.45 is: 18,242.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,327.20 : 64,987.83 = 12,162.45 : x
  2. Step 2: Convert to fraction form
    43,327.20/64,987.83 = 12,162.45/x
  3. Step 3: Cross multiply
    43,327.20x = 64,987.83 × 12,162.45
  4. Step 4: Simplify right side
    43,327.20x = 790,411,232.98
  5. Step 5: Solve for x
    x = 790,411,232.98/43,327.20
  6. Step 6: Final answer
    x = 18,242.84

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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.