Home / 43,122.88-64,687.05-13,541.88

Finding the Fourth Proportional to 43,122.88, 64,687.05 and 13,541.88

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Solution

The fourth proportional to 43,122.88, 64,687.05 and 13,541.88 is: 20,313.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,122.88 : 64,687.05 = 13,541.88 : x
  2. Step 2: Convert to fraction form
    43,122.88/64,687.05 = 13,541.88/x
  3. Step 3: Cross multiply
    43,122.88x = 64,687.05 × 13,541.88
  4. Step 4: Simplify right side
    43,122.88x = 875,984,268.65
  5. Step 5: Solve for x
    x = 875,984,268.65/43,122.88
  6. Step 6: Final answer
    x = 20,313.68

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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.