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Finding the Fourth Proportional to 75,018.70, 112,493.40 and 27,621.88

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Solution

The fourth proportional to 75,018.70, 112,493.40 and 27,621.88 is: 41,420.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,018.70 : 112,493.40 = 27,621.88 : x
  2. Step 2: Convert to fraction form
    75,018.70/112,493.40 = 27,621.88/x
  3. Step 3: Cross multiply
    75,018.70x = 112,493.40 × 27,621.88
  4. Step 4: Simplify right side
    75,018.70x = 3,107,279,195.59
  5. Step 5: Solve for x
    x = 3,107,279,195.59/75,018.70
  6. Step 6: Final answer
    x = 41,420.06

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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.