Home / 51,305.54-76,870.71-27,890.18

Finding the Fourth Proportional to 51,305.54, 76,870.71 and 27,890.18

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Solution

The fourth proportional to 51,305.54, 76,870.71 and 27,890.18 is: 41,787.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,305.54 : 76,870.71 = 27,890.18 : x
  2. Step 2: Convert to fraction form
    51,305.54/76,870.71 = 27,890.18/x
  3. Step 3: Cross multiply
    51,305.54x = 76,870.71 × 27,890.18
  4. Step 4: Simplify right side
    51,305.54x = 2,143,937,938.63
  5. Step 5: Solve for x
    x = 2,143,937,938.63/51,305.54
  6. Step 6: Final answer
    x = 41,787.65

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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.