Home / 87,682.02-131,490.72-31,507.11

Finding the Fourth Proportional to 87,682.02, 131,490.72 and 31,507.11

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Solution

The fourth proportional to 87,682.02, 131,490.72 and 31,507.11 is: 47,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,682.02 : 131,490.72 = 31,507.11 : x
  2. Step 2: Convert to fraction form
    87,682.02/131,490.72 = 31,507.11/x
  3. Step 3: Cross multiply
    87,682.02x = 131,490.72 × 31,507.11
  4. Step 4: Simplify right side
    87,682.02x = 4,142,892,579.02
  5. Step 5: Solve for x
    x = 4,142,892,579.02/87,682.02
  6. Step 6: Final answer
    x = 47,249.05

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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.