Home / 57,057.75-85,565.64-19,607.19

Finding the Fourth Proportional to 57,057.75, 85,565.64 and 19,607.19

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Solution

The fourth proportional to 57,057.75, 85,565.64 and 19,607.19 is: 29,403.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,057.75 : 85,565.64 = 19,607.19 : x
  2. Step 2: Convert to fraction form
    57,057.75/85,565.64 = 19,607.19/x
  3. Step 3: Cross multiply
    57,057.75x = 85,565.64 × 19,607.19
  4. Step 4: Simplify right side
    57,057.75x = 1,677,701,662.92
  5. Step 5: Solve for x
    x = 1,677,701,662.92/57,057.75
  6. Step 6: Final answer
    x = 29,403.57

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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.