Home / 87,928.88-131,866.35-31,762.05

Finding the Fourth Proportional to 87,928.88, 131,866.35 and 31,762.05

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Solution

The fourth proportional to 87,928.88, 131,866.35 and 31,762.05 is: 47,633.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,928.88 : 131,866.35 = 31,762.05 : x
  2. Step 2: Convert to fraction form
    87,928.88/131,866.35 = 31,762.05/x
  3. Step 3: Cross multiply
    87,928.88x = 131,866.35 × 31,762.05
  4. Step 4: Simplify right side
    87,928.88x = 4,188,345,602.02
  5. Step 5: Solve for x
    x = 4,188,345,602.02/87,928.88
  6. Step 6: Final answer
    x = 47,633.34

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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.