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Finding the Fourth Proportional to 51,114.88, 76,672.26 and 14,178.88

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Solution

The fourth proportional to 51,114.88, 76,672.26 and 14,178.88 is: 21,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,114.88 : 76,672.26 = 14,178.88 : x
  2. Step 2: Convert to fraction form
    51,114.88/76,672.26 = 14,178.88/x
  3. Step 3: Cross multiply
    51,114.88x = 76,672.26 × 14,178.88
  4. Step 4: Simplify right side
    51,114.88x = 1,087,126,773.87
  5. Step 5: Solve for x
    x = 1,087,126,773.87/51,114.88
  6. Step 6: Final answer
    x = 21,268.30

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1.5x scale

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.