Home / 48,662.81-67,120.11-31,635.65

Finding the Fourth Proportional to 48,662.81, 67,120.11 and 31,635.65

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Solution

The fourth proportional to 48,662.81, 67,120.11 and 31,635.65 is: 43,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,662.81 : 67,120.11 = 31,635.65 : x
  2. Step 2: Convert to fraction form
    48,662.81/67,120.11 = 31,635.65/x
  3. Step 3: Cross multiply
    48,662.81x = 67,120.11 × 31,635.65
  4. Step 4: Simplify right side
    48,662.81x = 2,123,388,307.92
  5. Step 5: Solve for x
    x = 2,123,388,307.92/48,662.81
  6. Step 6: Final answer
    x = 43,634.72

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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.