Home / 51,211.17-76,815.98-31,226.55

Finding the Fourth Proportional to 51,211.17, 76,815.98 and 31,226.55

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Solution

The fourth proportional to 51,211.17, 76,815.98 and 31,226.55 is: 46,839.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,211.17 : 76,815.98 = 31,226.55 : x
  2. Step 2: Convert to fraction form
    51,211.17/76,815.98 = 31,226.55/x
  3. Step 3: Cross multiply
    51,211.17x = 76,815.98 × 31,226.55
  4. Step 4: Simplify right side
    51,211.17x = 2,398,697,713.18
  5. Step 5: Solve for x
    x = 2,398,697,713.18/51,211.17
  6. Step 6: Final answer
    x = 46,839.35

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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.