Home / 57,185.90-85,790.31-19,747.34

Finding the Fourth Proportional to 57,185.90, 85,790.31 and 19,747.34

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Solution

The fourth proportional to 57,185.90, 85,790.31 and 19,747.34 is: 29,624.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,185.90 : 85,790.31 = 19,747.34 : x
  2. Step 2: Convert to fraction form
    57,185.90/85,790.31 = 19,747.34/x
  3. Step 3: Cross multiply
    57,185.90x = 85,790.31 × 19,747.34
  4. Step 4: Simplify right side
    57,185.90x = 1,694,130,888.17
  5. Step 5: Solve for x
    x = 1,694,130,888.17/57,185.90
  6. Step 6: Final answer
    x = 29,624.98

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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.