Home / 40,361.79-55,719.44-31,266.91

Finding the Fourth Proportional to 40,361.79, 55,719.44 and 31,266.91

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Solution

The fourth proportional to 40,361.79, 55,719.44 and 31,266.91 is: 43,163.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,361.79 : 55,719.44 = 31,266.91 : x
  2. Step 2: Convert to fraction form
    40,361.79/55,719.44 = 31,266.91/x
  3. Step 3: Cross multiply
    40,361.79x = 55,719.44 × 31,266.91
  4. Step 4: Simplify right side
    40,361.79x = 1,742,174,922.17
  5. Step 5: Solve for x
    x = 1,742,174,922.17/40,361.79
  6. Step 6: Final answer
    x = 43,163.96

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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.