Home / 99,558.53-149,314.20-28,478.97

Finding the Fourth Proportional to 99,558.53, 149,314.20 and 28,478.97

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Solution

The fourth proportional to 99,558.53, 149,314.20 and 28,478.97 is: 42,711.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,558.53 : 149,314.20 = 28,478.97 : x
  2. Step 2: Convert to fraction form
    99,558.53/149,314.20 = 28,478.97/x
  3. Step 3: Cross multiply
    99,558.53x = 149,314.20 × 28,478.97
  4. Step 4: Simplify right side
    99,558.53x = 4,252,314,622.37
  5. Step 5: Solve for x
    x = 4,252,314,622.37/99,558.53
  6. Step 6: Final answer
    x = 42,711.71

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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.