Home / 57,118.08-85,655.82-19,667.56

Finding the Fourth Proportional to 57,118.08, 85,655.82 and 19,667.56

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Solution

The fourth proportional to 57,118.08, 85,655.82 and 19,667.56 is: 29,494.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,118.08 : 85,655.82 = 19,667.56 : x
  2. Step 2: Convert to fraction form
    57,118.08/85,655.82 = 19,667.56/x
  3. Step 3: Cross multiply
    57,118.08x = 85,655.82 × 19,667.56
  4. Step 4: Simplify right side
    57,118.08x = 1,684,640,979.20
  5. Step 5: Solve for x
    x = 1,684,640,979.20/57,118.08
  6. Step 6: Final answer
    x = 29,494.01

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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.