Home / 54,947.70-82,421.55-51,261.30

Finding the Fourth Proportional to 54,947.70, 82,421.55 and 51,261.30

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Solution

The fourth proportional to 54,947.70, 82,421.55 and 51,261.30 is: 76,891.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,947.70 : 82,421.55 = 51,261.30 : x
  2. Step 2: Convert to fraction form
    54,947.70/82,421.55 = 51,261.30/x
  3. Step 3: Cross multiply
    54,947.70x = 82,421.55 × 51,261.30
  4. Step 4: Simplify right side
    54,947.70x = 4,225,035,801.02
  5. Step 5: Solve for x
    x = 4,225,035,801.02/54,947.70
  6. Step 6: Final answer
    x = 76,891.95

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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.