Home / 40,056.24-60,120-21,351.72

Finding the Fourth Proportional to 40,056.24, 60,120 and 21,351.72

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Solution

The fourth proportional to 40,056.24, 60,120 and 21,351.72 is: 32,046.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,056.24 : 60,120 = 21,351.72 : x
  2. Step 2: Convert to fraction form
    40,056.24/60,120 = 21,351.72/x
  3. Step 3: Cross multiply
    40,056.24x = 60,120 × 21,351.72
  4. Step 4: Simplify right side
    40,056.24x = 1,283,665,406.40
  5. Step 5: Solve for x
    x = 1,283,665,406.40/40,056.24
  6. Step 6: Final answer
    x = 32,046.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.