Home / 57,160.72-85,741.08-19,731.52

Finding the Fourth Proportional to 57,160.72, 85,741.08 and 19,731.52

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Solution

The fourth proportional to 57,160.72, 85,741.08 and 19,731.52 is: 29,597.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,160.72 : 85,741.08 = 19,731.52 : x
  2. Step 2: Convert to fraction form
    57,160.72/85,741.08 = 19,731.52/x
  3. Step 3: Cross multiply
    57,160.72x = 85,741.08 × 19,731.52
  4. Step 4: Simplify right side
    57,160.72x = 1,691,801,834.84
  5. Step 5: Solve for x
    x = 1,691,801,834.84/57,160.72
  6. Step 6: Final answer
    x = 29,597.28

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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.