Home / 56,521.28-84,782.68-17,078.72

Finding the Fourth Proportional to 56,521.28, 84,782.68 and 17,078.72

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Solution

The fourth proportional to 56,521.28, 84,782.68 and 17,078.72 is: 25,618.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,521.28 : 84,782.68 = 17,078.72 : x
  2. Step 2: Convert to fraction form
    56,521.28/84,782.68 = 17,078.72/x
  3. Step 3: Cross multiply
    56,521.28x = 84,782.68 × 17,078.72
  4. Step 4: Simplify right side
    56,521.28x = 1,447,979,652.57
  5. Step 5: Solve for x
    x = 1,447,979,652.57/56,521.28
  6. Step 6: Final answer
    x = 25,618.31

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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.