Home / 87,179.56-130,749.88-40,426.36

Finding the Fourth Proportional to 87,179.56, 130,749.88 and 40,426.36

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Solution

The fourth proportional to 87,179.56, 130,749.88 and 40,426.36 is: 60,630.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,179.56 : 130,749.88 = 40,426.36 : x
  2. Step 2: Convert to fraction form
    87,179.56/130,749.88 = 40,426.36/x
  3. Step 3: Cross multiply
    87,179.56x = 130,749.88 × 40,426.36
  4. Step 4: Simplify right side
    87,179.56x = 5,285,741,718.84
  5. Step 5: Solve for x
    x = 5,285,741,718.84/87,179.56
  6. Step 6: Final answer
    x = 60,630.52

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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.