Home / 43,134.81-64,708.75-13,549.87

Finding the Fourth Proportional to 43,134.81, 64,708.75 and 13,549.87

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Solution

The fourth proportional to 43,134.81, 64,708.75 and 13,549.87 is: 20,326.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,134.81 : 64,708.75 = 13,549.87 : x
  2. Step 2: Convert to fraction form
    43,134.81/64,708.75 = 13,549.87/x
  3. Step 3: Cross multiply
    43,134.81x = 64,708.75 × 13,549.87
  4. Step 4: Simplify right side
    43,134.81x = 876,795,150.36
  5. Step 5: Solve for x
    x = 876,795,150.36/43,134.81
  6. Step 6: Final answer
    x = 20,326.86

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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.