Home / 54,311.81-74,950.13-31,664.21

Finding the Fourth Proportional to 54,311.81, 74,950.13 and 31,664.21

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Solution

The fourth proportional to 54,311.81, 74,950.13 and 31,664.21 is: 43,696.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,311.81 : 74,950.13 = 31,664.21 : x
  2. Step 2: Convert to fraction form
    54,311.81/74,950.13 = 31,664.21/x
  3. Step 3: Cross multiply
    54,311.81x = 74,950.13 × 31,664.21
  4. Step 4: Simplify right side
    54,311.81x = 2,373,236,497.53
  5. Step 5: Solve for x
    x = 2,373,236,497.53/54,311.81
  6. Step 6: Final answer
    x = 43,696.51

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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.