Home / 51,131.64-76,715.94-17,856.60

Finding the Fourth Proportional to 51,131.64, 76,715.94 and 17,856.60

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Solution

The fourth proportional to 51,131.64, 76,715.94 and 17,856.60 is: 26,791.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,131.64 : 76,715.94 = 17,856.60 : x
  2. Step 2: Convert to fraction form
    51,131.64/76,715.94 = 17,856.60/x
  3. Step 3: Cross multiply
    51,131.64x = 76,715.94 × 17,856.60
  4. Step 4: Simplify right side
    51,131.64x = 1,369,885,854.20
  5. Step 5: Solve for x
    x = 1,369,885,854.20/51,131.64
  6. Step 6: Final answer
    x = 26,791.35

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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.