Home / 66,495.98-99,631.19-40,145.36

Finding the Fourth Proportional to 66,495.98, 99,631.19 and 40,145.36

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Solution

The fourth proportional to 66,495.98, 99,631.19 and 40,145.36 is: 60,149.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,495.98 : 99,631.19 = 40,145.36 : x
  2. Step 2: Convert to fraction form
    66,495.98/99,631.19 = 40,145.36/x
  3. Step 3: Cross multiply
    66,495.98x = 99,631.19 × 40,145.36
  4. Step 4: Simplify right side
    66,495.98x = 3,999,729,989.78
  5. Step 5: Solve for x
    x = 3,999,729,989.78/66,495.98
  6. Step 6: Final answer
    x = 60,149.95

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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.