Home / 43,305.88-64,961.16-12,143.56

Finding the Fourth Proportional to 43,305.88, 64,961.16 and 12,143.56

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Solution

The fourth proportional to 43,305.88, 64,961.16 and 12,143.56 is: 18,216.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,305.88 : 64,961.16 = 12,143.56 : x
  2. Step 2: Convert to fraction form
    43,305.88/64,961.16 = 12,143.56/x
  3. Step 3: Cross multiply
    43,305.88x = 64,961.16 × 12,143.56
  4. Step 4: Simplify right side
    43,305.88x = 788,859,744.13
  5. Step 5: Solve for x
    x = 788,859,744.13/43,305.88
  6. Step 6: Final answer
    x = 18,216.00

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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.