Home / 66,638.23-99,907.96-40,336.75

Finding the Fourth Proportional to 66,638.23, 99,907.96 and 40,336.75

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Solution

The fourth proportional to 66,638.23, 99,907.96 and 40,336.75 is: 60,475.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,638.23 : 99,907.96 = 40,336.75 : x
  2. Step 2: Convert to fraction form
    66,638.23/99,907.96 = 40,336.75/x
  3. Step 3: Cross multiply
    66,638.23x = 99,907.96 × 40,336.75
  4. Step 4: Simplify right side
    66,638.23x = 4,029,962,206.18
  5. Step 5: Solve for x
    x = 4,029,962,206.18/66,638.23
  6. Step 6: Final answer
    x = 60,475.23

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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.