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Finding the Fourth Proportional to 99,445.44, 149,169.44 and 39,488.64

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Solution

The fourth proportional to 99,445.44, 149,169.44 and 39,488.64 is: 59,233.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,445.44 : 149,169.44 = 39,488.64 : x
  2. Step 2: Convert to fraction form
    99,445.44/149,169.44 = 39,488.64/x
  3. Step 3: Cross multiply
    99,445.44x = 149,169.44 × 39,488.64
  4. Step 4: Simplify right side
    99,445.44x = 5,890,498,315.16
  5. Step 5: Solve for x
    x = 5,890,498,315.16/99,445.44
  6. Step 6: Final answer
    x = 59,233.47

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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.