Home / 57,931.56-86,896.44-18,488.43

Finding the Fourth Proportional to 57,931.56, 86,896.44 and 18,488.43

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Solution

The fourth proportional to 57,931.56, 86,896.44 and 18,488.43 is: 27,732.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,931.56 : 86,896.44 = 18,488.43 : x
  2. Step 2: Convert to fraction form
    57,931.56/86,896.44 = 18,488.43/x
  3. Step 3: Cross multiply
    57,931.56x = 86,896.44 × 18,488.43
  4. Step 4: Simplify right side
    57,931.56x = 1,606,578,748.19
  5. Step 5: Solve for x
    x = 1,606,578,748.19/57,931.56
  6. Step 6: Final answer
    x = 27,732.36

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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.