Home / 57,147.62-85,725.53-19,707.15

Finding the Fourth Proportional to 57,147.62, 85,725.53 and 19,707.15

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Solution

The fourth proportional to 57,147.62, 85,725.53 and 19,707.15 is: 29,562.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,147.62 : 85,725.53 = 19,707.15 : x
  2. Step 2: Convert to fraction form
    57,147.62/85,725.53 = 19,707.15/x
  3. Step 3: Cross multiply
    57,147.62x = 85,725.53 × 19,707.15
  4. Step 4: Simplify right side
    57,147.62x = 1,689,405,664.23
  5. Step 5: Solve for x
    x = 1,689,405,664.23/57,147.62
  6. Step 6: Final answer
    x = 29,562.14

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1.5x scale

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.