Home / 87,505.64-131,285.69-31,346.23

Finding the Fourth Proportional to 87,505.64, 131,285.69 and 31,346.23

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Solution

The fourth proportional to 87,505.64, 131,285.69 and 31,346.23 is: 47,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,505.64 : 131,285.69 = 31,346.23 : x
  2. Step 2: Convert to fraction form
    87,505.64/131,285.69 = 31,346.23/x
  3. Step 3: Cross multiply
    87,505.64x = 131,285.69 × 31,346.23
  4. Step 4: Simplify right side
    87,505.64x = 4,115,311,243.37
  5. Step 5: Solve for x
    x = 4,115,311,243.37/87,505.64
  6. Step 6: Final answer
    x = 47,029.10

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1.5x scale

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.