Home / 66,635.09-99,937.90-19,239.87

Finding the Fourth Proportional to 66,635.09, 99,937.90 and 19,239.87

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Solution

The fourth proportional to 66,635.09, 99,937.90 and 19,239.87 is: 28,855.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,635.09 : 99,937.90 = 19,239.87 : x
  2. Step 2: Convert to fraction form
    66,635.09/99,937.90 = 19,239.87/x
  3. Step 3: Cross multiply
    66,635.09x = 99,937.90 × 19,239.87
  4. Step 4: Simplify right side
    66,635.09x = 1,922,792,204.07
  5. Step 5: Solve for x
    x = 1,922,792,204.07/66,635.09
  6. Step 6: Final answer
    x = 28,855.55

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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.