Home / 71,231.81-98,299.27-39,400.02

Finding the Fourth Proportional to 71,231.81, 98,299.27 and 39,400.02

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Solution

The fourth proportional to 71,231.81, 98,299.27 and 39,400.02 is: 54,371.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,231.81 : 98,299.27 = 39,400.02 : x
  2. Step 2: Convert to fraction form
    71,231.81/98,299.27 = 39,400.02/x
  3. Step 3: Cross multiply
    71,231.81x = 98,299.27 × 39,400.02
  4. Step 4: Simplify right side
    71,231.81x = 3,872,993,253.24
  5. Step 5: Solve for x
    x = 3,872,993,253.24/71,231.81
  6. Step 6: Final answer
    x = 54,371.68

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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.