Home / 99,428.21-149,053.90-36,236.47

Finding the Fourth Proportional to 99,428.21, 149,053.90 and 36,236.47

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Solution

The fourth proportional to 99,428.21, 149,053.90 and 36,236.47 is: 54,322.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,428.21 : 149,053.90 = 36,236.47 : x
  2. Step 2: Convert to fraction form
    99,428.21/149,053.90 = 36,236.47/x
  3. Step 3: Cross multiply
    99,428.21x = 149,053.90 × 36,236.47
  4. Step 4: Simplify right side
    99,428.21x = 5,401,187,175.73
  5. Step 5: Solve for x
    x = 5,401,187,175.73/99,428.21
  6. Step 6: Final answer
    x = 54,322.48

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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.