Home / 50,272.11-69,408-31,172.18

Finding the Fourth Proportional to 50,272.11, 69,408 and 31,172.18

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Solution

The fourth proportional to 50,272.11, 69,408 and 31,172.18 is: 43,037.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,272.11 : 69,408 = 31,172.18 : x
  2. Step 2: Convert to fraction form
    50,272.11/69,408 = 31,172.18/x
  3. Step 3: Cross multiply
    50,272.11x = 69,408 × 31,172.18
  4. Step 4: Simplify right side
    50,272.11x = 2,163,598,322.40
  5. Step 5: Solve for x
    x = 2,163,598,322.40/50,272.11
  6. Step 6: Final answer
    x = 43,037.75

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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.