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Finding the Fourth Proportional to 76,517.74, 114,783.23 and 21,113.74

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Solution

The fourth proportional to 76,517.74, 114,783.23 and 21,113.74 is: 31,672.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,517.74 : 114,783.23 = 21,113.74 : x
  2. Step 2: Convert to fraction form
    76,517.74/114,783.23 = 21,113.74/x
  3. Step 3: Cross multiply
    76,517.74x = 114,783.23 × 21,113.74
  4. Step 4: Simplify right side
    76,517.74x = 2,423,503,274.58
  5. Step 5: Solve for x
    x = 2,423,503,274.58/76,517.74
  6. Step 6: Final answer
    x = 31,672.44

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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.