Home / 57,390.42-86,099.48-19,945.04

Finding the Fourth Proportional to 57,390.42, 86,099.48 and 19,945.04

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Solution

The fourth proportional to 57,390.42, 86,099.48 and 19,945.04 is: 29,922.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,390.42 : 86,099.48 = 19,945.04 : x
  2. Step 2: Convert to fraction form
    57,390.42/86,099.48 = 19,945.04/x
  3. Step 3: Cross multiply
    57,390.42x = 86,099.48 × 19,945.04
  4. Step 4: Simplify right side
    57,390.42x = 1,717,257,042.36
  5. Step 5: Solve for x
    x = 1,717,257,042.36/57,390.42
  6. Step 6: Final answer
    x = 29,922.36

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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.