Home / 66,621.87-91,943.41-37,942.74

Finding the Fourth Proportional to 66,621.87, 91,943.41 and 37,942.74

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Solution

The fourth proportional to 66,621.87, 91,943.41 and 37,942.74 is: 52,363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,621.87 : 91,943.41 = 37,942.74 : x
  2. Step 2: Convert to fraction form
    66,621.87/91,943.41 = 37,942.74/x
  3. Step 3: Cross multiply
    66,621.87x = 91,943.41 × 37,942.74
  4. Step 4: Simplify right side
    66,621.87x = 3,488,584,900.34
  5. Step 5: Solve for x
    x = 3,488,584,900.34/66,621.87
  6. Step 6: Final answer
    x = 52,363.96

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1.5x scale

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.