Home / 57,119.08-85,657.32-19,668.56

Finding the Fourth Proportional to 57,119.08, 85,657.32 and 19,668.56

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Solution

The fourth proportional to 57,119.08, 85,657.32 and 19,668.56 is: 29,495.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,119.08 : 85,657.32 = 19,668.56 : x
  2. Step 2: Convert to fraction form
    57,119.08/85,657.32 = 19,668.56/x
  3. Step 3: Cross multiply
    57,119.08x = 85,657.32 × 19,668.56
  4. Step 4: Simplify right side
    57,119.08x = 1,684,756,137.86
  5. Step 5: Solve for x
    x = 1,684,756,137.86/57,119.08
  6. Step 6: Final answer
    x = 29,495.51

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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.