Home / 51,137.40-76,634.10-40,625.40

Finding the Fourth Proportional to 51,137.40, 76,634.10 and 40,625.40

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Solution

The fourth proportional to 51,137.40, 76,634.10 and 40,625.40 is: 60,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,137.40 : 76,634.10 = 40,625.40 : x
  2. Step 2: Convert to fraction form
    51,137.40/76,634.10 = 40,625.40/x
  3. Step 3: Cross multiply
    51,137.40x = 76,634.10 × 40,625.40
  4. Step 4: Simplify right side
    51,137.40x = 3,113,290,966.14
  5. Step 5: Solve for x
    x = 3,113,290,966.14/51,137.40
  6. Step 6: Final answer
    x = 60,880.90

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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.