Home / 66,972.12-92,424.42-40,119

Finding the Fourth Proportional to 66,972.12, 92,424.42 and 40,119

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Solution

The fourth proportional to 66,972.12, 92,424.42 and 40,119 is: 55,365.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,972.12 : 92,424.42 = 40,119 : x
  2. Step 2: Convert to fraction form
    66,972.12/92,424.42 = 40,119/x
  3. Step 3: Cross multiply
    66,972.12x = 92,424.42 × 40,119
  4. Step 4: Simplify right side
    66,972.12x = 3,707,975,305.98
  5. Step 5: Solve for x
    x = 3,707,975,305.98/66,972.12
  6. Step 6: Final answer
    x = 55,365.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.