Home / 56,711.43-85,119.71-28,651.23

Finding the Fourth Proportional to 56,711.43, 85,119.71 and 28,651.23

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Solution

The fourth proportional to 56,711.43, 85,119.71 and 28,651.23 is: 43,003.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,711.43 : 85,119.71 = 28,651.23 : x
  2. Step 2: Convert to fraction form
    56,711.43/85,119.71 = 28,651.23/x
  3. Step 3: Cross multiply
    56,711.43x = 85,119.71 × 28,651.23
  4. Step 4: Simplify right side
    56,711.43x = 2,438,784,388.74
  5. Step 5: Solve for x
    x = 2,438,784,388.74/56,711.43
  6. Step 6: Final answer
    x = 43,003.40

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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.