Home / 87,836.13-131,754.26-21,276.34

Finding the Fourth Proportional to 87,836.13, 131,754.26 and 21,276.34

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Solution

The fourth proportional to 87,836.13, 131,754.26 and 21,276.34 is: 31,914.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,836.13 : 131,754.26 = 21,276.34 : x
  2. Step 2: Convert to fraction form
    87,836.13/131,754.26 = 21,276.34/x
  3. Step 3: Cross multiply
    87,836.13x = 131,754.26 × 21,276.34
  4. Step 4: Simplify right side
    87,836.13x = 2,803,248,156.01
  5. Step 5: Solve for x
    x = 2,803,248,156.01/87,836.13
  6. Step 6: Final answer
    x = 31,914.52

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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.