Home / 81,591.32-112,576.83-47,579.42

Finding the Fourth Proportional to 81,591.32, 112,576.83 and 47,579.42

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Solution

The fourth proportional to 81,591.32, 112,576.83 and 47,579.42 is: 65,648.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,591.32 : 112,576.83 = 47,579.42 : x
  2. Step 2: Convert to fraction form
    81,591.32/112,576.83 = 47,579.42/x
  3. Step 3: Cross multiply
    81,591.32x = 112,576.83 × 47,579.42
  4. Step 4: Simplify right side
    81,591.32x = 5,356,340,276.84
  5. Step 5: Solve for x
    x = 5,356,340,276.84/81,591.32
  6. Step 6: Final answer
    x = 65,648.41

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1.5x scale

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.