Home / 81,947.44-113,087.42-47,962.40

Finding the Fourth Proportional to 81,947.44, 113,087.42 and 47,962.40

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Solution

The fourth proportional to 81,947.44, 113,087.42 and 47,962.40 is: 66,188.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,947.44 : 113,087.42 = 47,962.40 : x
  2. Step 2: Convert to fraction form
    81,947.44/113,087.42 = 47,962.40/x
  3. Step 3: Cross multiply
    81,947.44x = 113,087.42 × 47,962.40
  4. Step 4: Simplify right side
    81,947.44x = 5,423,944,073.01
  5. Step 5: Solve for x
    x = 5,423,944,073.01/81,947.44
  6. Step 6: Final answer
    x = 66,188.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.