Home / 57,132.74-85,646.62-19,683.90

Finding the Fourth Proportional to 57,132.74, 85,646.62 and 19,683.90

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Solution

The fourth proportional to 57,132.74, 85,646.62 and 19,683.90 is: 29,507.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,132.74 : 85,646.62 = 19,683.90 : x
  2. Step 2: Convert to fraction form
    57,132.74/85,646.62 = 19,683.90/x
  3. Step 3: Cross multiply
    57,132.74x = 85,646.62 × 19,683.90
  4. Step 4: Simplify right side
    57,132.74x = 1,685,859,454.21
  5. Step 5: Solve for x
    x = 1,685,859,454.21/57,132.74
  6. Step 6: Final answer
    x = 29,507.77

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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.