Home / 66,438.22-99,544.56-40,087.60

Finding the Fourth Proportional to 66,438.22, 99,544.56 and 40,087.60

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Solution

The fourth proportional to 66,438.22, 99,544.56 and 40,087.60 is: 60,063.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,438.22 : 99,544.56 = 40,087.60 : x
  2. Step 2: Convert to fraction form
    66,438.22/99,544.56 = 40,087.60/x
  3. Step 3: Cross multiply
    66,438.22x = 99,544.56 × 40,087.60
  4. Step 4: Simplify right side
    66,438.22x = 3,990,502,503.46
  5. Step 5: Solve for x
    x = 3,990,502,503.46/66,438.22
  6. Step 6: Final answer
    x = 60,063.36

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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.